321540ed91e193ce555f1a706111f7cd1af6dacc
69
Commits
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  SenrokaiandClaude Opus 5.5
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321540ed91 |
Merge the solar-system branch, so the star catalogue lands on the sky it now shares
Both branches changed the system view's star, the body card's provenance line, the exoplanet fetch and the ETL's validators. Resolved by keeping both sides: - The system view's star is the catalogue's (its own radius and temperature, a limb-darkened surface in its colour) and turns like a planet when it is the Sun (the solar branch's IAU pole and 25.38-day turn), keyed on SUN_STAR_ID, since the catalogue branch dropped the scene's own SOL_STAR_ID. Framing takes the outermost thing drawn (an eccentric orbit's aphelion, from the solar branch) and the star's radius for a giant (from the catalogue). The solar branch's comment about a halo is dropped: there has been none since #33. - The card's no-temperature sentence is the catalogue's (the host's luminosity or the orbit's size, not "not in the catalogue", which holds for 27 planets) and ends with the solar branch's reason why no image is used (a point of light for the 101 imaged planets, none for the rest). - fetchExoplanets reads the composite table and the distance errors (catalogue) and the imaged list (solar); build.ts runs both branches' validators. The data were regenerated by the full ETL on the merged code, from cache (nothing refetched): stars.bin, stars-meta.bin, stars-index.json and deepsky.json come out byte for byte the catalogue branch's, bodies.json the solar branch's, and exoplanets.json the catalogue branch's but for the imaged flag on 101 planets, WASP-108 b not among them. Unit suite 977 passed, the two branches' 870 and 837 over their shared 730, so no test was lost. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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cea4ff799f |
Bring the counts the comments and README quote back to the catalogue
Measured on the published catalogue at this commit, through starSurfaceOf and starReadouts: - star-readouts.ts said 11 546 derived radii read "from its type": 10 702 giants with a colour and 844 stars with none. That left out the 26 dwarfs whose colour is off the table, and the colour Gaia now gives 931 HYG-described stars moved the rest: 10 953 = 10 713 giants with a colour, 214 stars with none (GJ 3655 among them) and those 26. 5 more read "from its temperature". - stellar.ts said 821 dwarfs are placed at their type's row. Counted over every star that is not a giant and whose colour the table does not read: 224 with no colour and 36 with one off the table. - The README still said the card marks every derived radius "from colour and brightness"; it now names the three bases the card gives. - build.ts's survivor breakdown, after θ¹ Ori A left: 11 464 HYG stars without a Gaia counterpart, 8 307 of them past 250 pc, 1 660 of those naked-eye. Comments and documentation only. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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74913d844d |
Place a naked-eye star by SIMBAD's name only within a magnitude of its source, and hold HD 45951 to it
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SenrokaiandClaude Opus 5.5
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e7c420b296 |
Fold a Gliese star into its Gaia source in Gaia's photometry, wherever HYG already put it, and place two naked-eye stars by SIMBAD's name for them
The Gliese fold ( |
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SenrokaiandClaude Opus 5.5
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c8d1bbb879 |
Hold st_lum's conversion to two hosts' luminosities, and mu2 Sco b to its host
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SenrokaiandClaude Opus 5.5
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69cada7914 |
Fail the ETL when re-rating a locked moon moves its pole or W off the kernel's at the present
lockedToOrbit re-rates a locked moon's W and node terms and moves their constants so that on 2025-01-01, the date the IAU's elements were fitted near, the pole and W are the kernel's own. Nothing checked it: with the constants left where they were, the solar ETL passed and the suite passed, though every re-rated moon moved (Rhea's pole 0.018 degrees, Triton 0.0054, Miranda 0.0037, Europa 0.0027, Callisto 0.0021, Deimos 0.0016, Ganymede 0.0016, measured on the bodies.json it wrote; before the drawn node rates were corrected, Mimas's W moved 0.21 and Miranda's pole 0.12). lockedToOrbit now compares orientationAt at PRESENT_JD before and after, Iapetus's pole round its orbit included, and throws past 1e-6 degrees. Measured on the shipped catalogue: at most 4.7e-10 (Deimos's W, some 2.6 million degrees round), the pole exactly. Guarded mutants, each through the solar ETL on the real catalogue: - node terms' constants not moved: "Deimos's pole or W on 2460676.5 is 1.60e-3 degrees from the IAU's". - W's constant not moved: Deimos, 9.12e-2. - the check disabled with the first: the ETL passes (control). The unit suite does not see it: the check runs on the kernel, which only the ETL reads. The ETL writes the same bodies.json as before. Unit suite 866 passed. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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24c7be1bae |
Draw four moons' nodes at JPL's current rates, which Horizons and the IAU's poles agree with
The archived satellite table the moons are read from gives older node
periods than JPL's current one for Miranda (17.727 years against URA182's
17.787), Ganymede (132.654 against 137.812), Callisto (338.82 against
577.264) and Titan (704.60 against 687.370), and
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SenrokaiandClaude Opus 5.5
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280159dcd2 |
Bring the figures the comments quote back to what the catalogue now holds
Later commits on this branch ( |
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SenrokaiandClaude Opus 5.5
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f31ffe1425 |
Store a star's distance error in two bytes, so the card prints the error its catalogue published
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SenrokaiandClaude Opus 5.5
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4d47896b4a |
Find the naked-eye stars Gaia's HIP cross-match lacks by position, and give two unnamed ones back their names
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SenrokaiandClaude Opus 5.5
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030447b83c |
Fold a Gliese star into the Gaia source SIMBAD names it as, so none is drawn twice or inside 10 pc by mistake
HYG's Gliese-only rows, with no Hipparcos astrometry and no published error on their distance, reach the merge with positions off by up to minutes of arc, photometric distances and sometimes wrong proper motions, and isSameStar's geometry missed 49 of them beside their own Gaia entry. 43 lie within 25 pc and 27 are fainter than V 12, the layer the brief asked to merge without duplicates. GJ 3478 is 16.3" from its Gaia entry, past the 15" tolerance; GJ 2097 moves 39 % differently by HYG's motion; GJ 4285 is co-moving but 1.6 magnitudes brighter in HYG's V than Gaia's G. Two of them were false stars inside 10 pc: GJ 2097 at 6.41 pc and GJ 4285 at 6.80, which Gaia measures at 24.47 and 28.25. HYG also put Gl 94 31.6 degrees from where it is, and HD 23585 and HD 23713, Pleiades members at 135 pc, at 20.6 and 22.2. 0e9ab6f's "no Gliese row within 25 pc has a co-moving bare Gaia entry 3-300" away" held only under its own motion rule. fetchStars now asks SIMBAD once, in one cached TAP query, for the Gaia DR3 designation of every object it knows by a GJ number (4 868), maps HYG's `gl` column onto it, and foldByIdentity folds each Gliese-only row into the bare Gaia entry of that source: HYG's name, type and photometry, Gaia's position and distance, as combine does for any other pair. An ETL run from cache folds 49: 455 571 stars become 455 522, the stars within 10 pc 369 become 367, within 25 pc 5 522 become 5 479, HYG rows without a Gaia counterpart 11 517 become 11 468, distances with no published error 395 become 346. exoplanets.json is unchanged. In the running app GJ 2097 reads "24 pc, HYG, Gaia DR3 distance", GJ 4285 28 pc, Gl 94 17 pc, and 367 stars lie within 10 pc. validateMerge now refuses any Gliese-only row beside the bare Gaia entry SIMBAD names as the same star. Controls: folding with an empty identity map fails the ETL with "49 Gliese stars are drawn beside the Gaia source SIMBAD names them as, starting with GJ 1033" (the baseline passed); in the unit suite, folding a row with a Hipparcos error fails "leaves a star with a Hipparcos error, and a Gaia entry already folded into, alone", and keeping the Gliese position fails "folds a Gliese entry into the Gaia entry SIMBAD names it as, at Gaia's position and distance". HYG's V is kept for a folded star, which for GJ 3207 is the wrong one (11.51 where SIMBAD has 13.75). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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74ea1d655e |
Turn a locked moon's pole round with its drawn node, so its axis stays on its orbit at every date the clock reaches
The IAU carries a locked moon's pole round its orbit normal on a term of the node's angle, as a moon in a Cassini state keeps it, but at the node rate the IAU's source had: Miranda's U11 at -2024.22 degrees a century where the JPL table its orbit is drawn from has -2030.80, Mimas's S3 at -36505.5 against -36511.16. Over AD 1-3000 that parted Miranda's drawn axis from its drawn orbit normal by up to 7.89 degrees (AD 9), so Uranus swung 7.6 degrees north and south on its sky every 1.41 days, and Mimas's by 2.63. Only Iapetus's pole had been put on its orbit. lockedToOrbit now sets every periodic term whose angle turns within 5 per cent of k times the drawn node rate (k from 1 to 9, the most the report takes, Triton's) to exactly that multiple, and moves its constant so the angle, and the pole and W with it, are unchanged on 2025-01-01 (the 2025 pole and W of every changed moon are identical to the 1e-14 degree). Measured: the largest offset taken is Ganymede's J5, 3.4e-2, then Rhea's 1.2e-2; the nearest term that is not a node is 6.0e-2 out (a W-only term of Miranda's), and Umbriel's W has one 1.0e-2 from ten times its node, which the k limit leaves. Ten moons change: Deimos, Io, Europa, Ganymede, Mimas, Tethys, Rhea, Miranda, Triton and Proteus. The Moon and Phobos, whose W carries a quadratic, are left as before, and so is Callisto's J6, 40 per cent from its node rate. Worst angle between the spin axis and the drawn orbit normal over AD 1-3000, every 135 days, before and after: Miranda 7.89 -> 0.42, Mimas 2.63 -> 0.47, Rhea 0.77 -> 0.17, Triton 0.51 -> 0.15, Europa 0.33 -> 0.13, Ganymede 0.50 -> 0.16. Faces: Miranda 2.75 -> 2.39, Mimas 8.94 -> 8.89, Deimos 2.14 -> 2.08, Triton 2.88 -> 2.81; none got worse. build.ts now checks that angle for every locked moon over the same 8114 dates as the face check, at most 1 degree (Tethys 0.97, whose IAU pole sits 0.69 from its orbit today; Titan 0.94, whose IAU pole is still while its node turns in 705 years), with four named ceilings: the Moon 7.1 (its real 6.7-degree tilt, 6.98 at worst), Phobos 2 and Deimos 2 (1.81 and 1.74) and Proteus 1.2 (1.09), whose IAU poles nod with Mars's and Neptune's precessing poles while the Laplace poles their orbits are drawn round are fixed. The obliquity check at Horizons' epoch shares the new axisFromOrbitDeg with it. Nothing checked the axis against the orbit before: an Iapetus pole left on its Laplace pole, 8.30 degrees off at every date, passed the ETL and the suite. Guarded mutants, each through the solar ETL and then the suite on the data it wrote: - node terms left at the IAU rates: the ETL fails with "Moon mimas's spin axis leans up to 2.63 degrees ... (at most 1 expected)", and the suite with only the new test failing; - Iapetus's pole put on its Laplace pole, W re-phased so its face today is unchanged (worst face 16.41, under its 16.5 ceiling): the ETL fails with "Moon iapetus's spin axis leans up to 8.30 degrees", and the suite with only the new test failing. Also: lockedToOrbit called the Iapetus normal's circle "8.3 degrees across"; 8.3 is its radius (the row's i = 8.298 to the Laplace plane) and it is 16.6 across. The README credited every rotation to pck00011 without saying that a locked moon's W and node terms are re-rated to its JPL mean elements and Iapetus's pole carried round its orbit normal; both of its lines now say so, as the body model's doc does. Unit suite 858/858, etl:typecheck and tsc -p tsconfig.app.json clean, solar ETL passes on the real data. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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8d59c720b3 |
Hold the published catalogue to its naked-eye stars, its host luminosities and five other things no check saw
Seven properties of the catalogue could be lost by a one-line slip in the ETL with every validator passing and the weekly job publishing the result. validateStars and validateExoplanets now refuse: - fewer than 8 800 stars of V 6.5 or brighter (8 886 measured), or Rigel, Deneb or Alnilam gone; with no magnitude handed to placementDistancePc, 7 378 are left; - a host luminosity that is not positive, or fewer than 90 % of planets carrying one (6 036 of 6 354): st_lum is published as log10(L/L_sun), and stored unconverted 3 307 read <= 0 and Proxima's -2.82; - fewer than 40 colours marked as read off a temperature (54 measured); - an archive-placed star more than 1 mas from its planets' published position carried from J2015.5 to J2000 (6.6e-8 mas at most measured; not carried, 6 277.9); - fewer than 300 HYG stars folded into Gaia keeping their more precise Hipparcos distance (384), or Tarazed and Eta Leo off theirs; - more than 5 archive stars numbered other than their name hashes to (1 measured). These come from an interrupted earlier attempt left uncommitted in this worktree; its other half, asymmetric archive distance errors that nothing in the ETL wrote, and a placementDistancePc test that failed, was discarded (saved in the scratchpad as uncommitted-at-start.patch). The naked-eye check is new, and runs before the Hipparcos one, which the same slip also trips. Controls, each an ETL run from cache in a throwaway worktree that reached "Validating output..." and failed with the named check's own message: no magnitude to placementDistancePc (naked-eye floor); `10 ** logLuminosity` -> `logLuminosity`; colorFromTemperature never set; the archive epoch offset times 0; combine never taking the other entry's distance; archive ids in arrival order. The unmutated baseline passed. star.model.ts's count of flagged hosts, 57, is now 54. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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5fb0d45623 |
Place an archive host by its parallax where the archive gives no distance, so mu2 Sco b has its star
The archive leaves sy_dist blank for mu2 Sco and publishes sy_plx 6.31 +- 0.86 mas. The matcher only reads the parallax as a second chance beside a finite sy_dist, and the archive-star fallback needs sy_dist too, so mu2 Sco b had no host while Pipirima (HIP 82545, V 3.56, B2 IV) sat on the map 0.4" from the archive's direction at 145.3 pc. The build.ts comment and the step report said the 27 hostless planets had "no distance in either archive table"; mu2 Sco was the one whose row has a parallax. archiveDistancePc takes sy_dist, or 1000 / sy_plx where it is blank (158.5 pc here, within the ratio test of Pipirima's 145.3). An ETL run from cache changes exoplanets.json alone: mu2 Sco b now has host 82294, Pipirima, and 6 328 of 6 354 planets have a host (26 without, none of whose rows has a distance or a parallax). hostDistancePc stays the archive's own blank. Control: ignoring the parallax fails "takes the archive's parallax where it gives no distance, and nothing from a parallax that is none" alone. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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734b048c9e |
Write the star assets once, after the archive's hosts are added, not before them as well
Since |
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SenrokaiandClaude Opus 5.5
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a15a46c617 |
Correct what the ETL, the code and the textures README said of their own sources and figures
- The IAU day check said it compared W with the period Horizons states. That holds for the eight
planets and Phoebe only. Pluto's and Ceres's periods are the IAU's own rate restated (8.5e-12 and
3.3e-10: Horizons' Pluto period is 360 over its W, and the SBDB notes it derived Ceres's from the
report's 952.1532 degrees a day), and the 22 locked moons' is their orbit's, from JPL's table, not
from their Horizons pages ("Synchronous" on eighteen, nothing on Titan's or Proteus's), and now
their W's own rate. The comment, the log line and the error message say which is which; the log
shows 0.0e+0 for the twenty locked moons turned at their orbit's rate, 1.1e-8 and 3.1e-7 for the
Moon and Phobos. BodyRecord.rotationPeriodHours says that where a source states no period, or
one a later measurement overturns, it is the one the ETL spec carries (Nereid's, Eris's), where
the previous commit had Eris among the bodies whose source states none.
- Phoebe's spec justified its period by a note in the satellite table, which is about another
source (Jacobson 2000, Jupiter's outer moons) and says the table carries corrected values. The
row's n is right as the table defines it, the rate of the mean longitude: n less twice the node's
rate is 0.6541855 degrees a day, against 360 / 550.30391 = 0.6541840. What made Phoebe drift is
that the propagator reads a retrograde moon's n as its sidereal rate, as Triton's row gives it.
The comment now says so; the period, 550.30391 days, is kept.
- body-orientation.ts and its spec said the IAU's W for Earth, "taken at UT", left its face 2.3 and
4.5 degrees off Horizons at AD 1000 and AD 1. The old code took it at UT + 69.184 s; those are
that figure's, and at UT itself they are 2.0 and 4.2, as three reviewers measured through the
code (4.25, 4.25 and 4.28 at AD 1).
- The renderer said the 28 maps entering the Sun's system are about 20 megapixels of JPEG. Read
from their frame headers: 37.75, nine at 2048 by 1024 with the Sun's, Jupiter's at 3840 by 1920
and eighteen smaller.
- The textures README gave Titan 0.02 per cent unmapped, counting only the source's zeros. Its
largest gap is a flat grey of the source's own (147 and 148, its two commonest values), which
NASA's caption for PIA19658 names as the gap in coverage: measured on titan.jpg, one region of
1.09 per cent of the pixels, 0.87 of the sphere, at 48-68 N and 37 W to 25 E. The row says 1.1 per
cent and where, and step 1 says how it is counted; commit 302fa96's "the rest under 0.2%" is
therefore not true of Titan.
No behaviour changes but the ETL's log and error wording; the solar ETL passes with the new text.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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SenrokaiandClaude Opus 5.5
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dadae7b8ca |
Give Haumea's card its three semi-axes beside its mean radius
Haumea is triaxial, 1161 x 852 x 513 km (Ortiz et al. 2017, Nature 550, 219), and is drawn as the
sphere of its volume, 797.6 km. Its card listed "Radius 798 km" under Measured and said nothing of
its shape, which only a code comment and a commit message gave: its long semi-axis is 1.46 times
that radius and its short one 0.64.
BodyRecord takes semiAxesKm, set by the ETL from Haumea's spec, and the card then reads "Mean
radius 798 km" and "Semi-axes 1,161 x 852 x 513 km". Every other body keeps its one Radius row. The
ETL checks that a body's radius is the mean of its semi-axes, the radius of the sphere of the same
volume, to 0.1 per cent (797.6 against 797.62).
Measured on :4301, Haumea's page: "Mean radius 798 km, Semi-axes 1,161 x 852 x 513 km". Test: the
card of Haumea as shipped in bodies.json. Guarded mutants: the semi-axes dropped from the spec (run
through the solar ETL), the row, or the view model, or the label left as Radius, each fail it and
only it; a radius that is not their mean fails the ETL ("Haumea's radius, 1161 km, is not the mean
of its semi-axes").
Horizons gives triaxial radii for Phobos, Deimos, Miranda and Ariel too, which the page parser
already reads into their mean; they are not carried here.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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SenrokaiandClaude Opus 5.5
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fc7677e715 |
Turn Nereid in the 11.594 hours Kepler measured, where it was drawn still
Nereid's Horizons page states no spin, and the ETL, finding none, left it still; the validator's
comment read that as "Nereid has no spin". Its rotation is measured: Kepler's K2 light curve gives
11.594 +/- 0.017 hours, confirming earlier ground-based periods (Kiss et al. 2016, MNRAS 457, 2908;
arXiv:1601.02395). Its spec now carries that day, as Eris's carries Bernstein et al.'s, and with no
known pole it turns about its orbit normal, as Eris, Haumea and Makemake do. The free-spinner check
accepts it (11.594 hours against a 360-day orbit).
A new validator: a moon without a lock must have a day unless it tumbles, and only Hyperion
("Rotational period = Chaotic") does. Nereid, left without one, fails it: "Moon nereid is drawn not
turning, and is not known to tumble". The renderer spec's example of a body left still was Titan,
said to have no period on Horizons, though it carries its orbit's; it is Hyperion now, and
BodyRecord.rotationPeriodHours says where each kind of period comes from.
Measured: the solar ETL passes; in bodies.json only Hyperion has no rotationPeriodHours; live on
:4301 Nereid's marker turns 60.000 degrees in a sixth of its day. Test: Nereid, as shipped, turns 60
degrees in 1.93 hours. Guarded mutant, the day removed from its spec and run through the solar
ETL: the validator fails, and the suite on the data it wrote fails that test and only it.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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SenrokaiandClaude Opus 5.5
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e8e857ec25 |
Hold Io and Europa to their own track ceilings, and Hyperion's one-date ceiling to just above its offset
Io's and Europa's periapses turn backwards, held by the Laplace resonance (apsidesRegress), which brings them to 0.07 and 0.23 degrees of Horizons from 1950 to 2100. Nothing guarded the flag: with it dropped the ETL still passed, Io at 0.96 and Europa at 2.24 under the general 3-degree track ceiling, their cards quietly rewriting themselves to "within 1.0" and "within 2.3". They now have ceilings of 0.2 and 0.5, as Tethys has for the term it takes from its W. The comment on the one-date check, which said it catches the periapsis run the wrong way, now says it does not (0.904 against 2.5) and which check does. Hyperion's one-date ceiling was 21 degrees, described as just above its offset on that date, where it is 9.413: the 21 was its worst over twelve dates in an earlier check. It is now 10. Measured on the real catalogue with the solar ETL: Io 0.07, Europa 0.23 at worst, Hyperion 9.413, all passing. Guarded mutants, run through the solar ETL: apsidesRegress removed from both specs fails with "Io's mean elements put it up to 0.96 degrees ... (at most 0.2 expected)"; Hyperion's row misread by 6 degrees of node fails the one-date check at 15.41, which 21 let through. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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3b4fd1af6c |
Turn each locked moon at its orbit's rate and Iapetus's pole round its orbit, so they face their planets at every date the clock reaches
The IAU gives a locked moon's W the mean motion of whichever orbit its authors had, and JPL's table has another. Near the present the difference is nothing; over the clock's AD 1 to 3000 it turned Proteus's far side to Neptune at AD 1 (146 degrees), Mimas 52 degrees from Saturn and Miranda 23. Iapetus was worse for another reason: its IAU pole is a straight line, 3.9 degrees a century in right ascension, through its orbit normal's 3 439-year circle round the Laplace pole, which by AD 1 has run past the celestial pole (Dec 97.9), 11 degrees off the orbit, with the face 87 degrees from Saturn. Mimas and Iapetus carry mission maps, so a wrong hemisphere was drawn facing Saturn. The ETL's lock check sampled only 1950-2100, so none of it failed. tools/etl/lib/locked-spin.ts, lockedToOrbit, called for every locked moon: - W's rate becomes the orbit's own mean motion, its constant moved so W is unchanged on 2025-01-01; the pole and every periodic term stay the IAU's. A W with a quadratic is left (Phobos's orbit already takes it; the Moon's is its tidal slowing, 0.75 degrees at AD 1). The kernel's rate must be within 1e-5 of the orbit's first (at most 3.4e-6, Iapetus). - Iapetus (poleFollowsOrbit): the pole follows its orbit normal, as a moon in a Cassini state does, in the IAU's own form: sines of the node's angle and four harmonics on right ascension, cosines on declination, fitted to the normal's circle and pinned to the IAU pole at the present; W takes sines of the same angles, fitted to hold the face where it is today. build.ts samples the lock over AD 1 to 3000 (8 114 dates, every 135 days) instead of 1950-2100, and subPlanetLongitudeDeg moved to the lib, shared by both. Measured on the real catalogue: at most 5.36 degrees (Titan) but the Moon 7.62 (its eccentricity, and W's quadratic at AD 1: a new named ceiling of 8), Mimas 8.94 (ceiling 11 -> 9.5) and Iapetus 15.95 (19 -> 16.5, 9.4 of it its row's lag); Proteus's own ceiling of 9 is gone, at 2.66. Iapetus's axis stays within 0.74 degrees of its orbit normal (11.06 before) and its pole is the IAU's at the present to 1e-4 degrees. Live on :4301, the longitude facing the planet at AD 1 / 1000 / 2025 / 2999: Proteus 2.6 / 2.6 / 2.6 / 2.6 (was -146.5 / -72.9 / 2.6 / 74.5), Iapetus -15.9 / -15.4 / -15.3 / -9.3 (-87.0 / -50.9 / -15.3 / 22.8), Mimas 4.1 / 6.8 / 5.7 / 8.4 (48.6 / 29.3 / 5.7 / -13.0), Miranda -0.1 / 2.2 / 0.0 / 1.4 (-23.4 / -9.6 / 0.0 / 12.6); the present is unchanged. The renderer spec now takes the rotational elements from bodies.json too, so no hand copy is left, and a new test turns Proteus, Miranda, Mimas and Iapetus to their planets at AD 1 and AD 3000. Guarded mutants, each run through the solar ETL and then the full suite on what it wrote: lockedToOrbit bypassed (validator: Mimas 52.30, ceiling 9.5; the new test fails), Iapetus on the IAU's straight pole (98.48), and its pole round the orbit without W's terms (73.13); each fails the new test and only it. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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d449214309 |
Stop calling WASP-108 b imaged, and stop saying no map exists of an imaged exoplanet
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SenrokaiandClaude Opus 5.5
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acc4b928f2 |
Say that Makemake's day is known only to a factor of two, citing both readings
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SenrokaiandClaude Opus 5.5
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4cd08ee324 |
Credit the IAU W on the three moons whose orbits take terms from it, guard Tethys's, and say what Mimas's lock ceiling is
Since
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SenrokaiandClaude Opus 5.5
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48fd6fd0e5 |
Stop telling the reader that the hundred directly imaged exoplanets were never imaged
Every exoplanet card without a map ended "Not an observation — no image of this world exists.",
and
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SenrokaiandClaude Opus 5.5
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ff744a00de |
Place a naked-eye star HYG gives no distance for by its Hipparcos parallax, where that is 2.5 times its error
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SenrokaiandClaude Opus 5.5
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8c3a86097c |
Place a star at whichever of its two distances is the more precise, not at Gaia's regardless
placementDistancePc took Gaia's distance wherever the cross-match gave a usable one, and its
docstring and
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SenrokaiandClaude Opus 5.5
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23547defe0 |
Read an archive host's colour off the dwarf sequence at its temperature, and say it was not measured
For an archive-placed host with a temperature and no B magnitude, fetchExoplanets took B−V from Ballesteros' blackbody fit, which runs 0.1 to 0.2 redder than Pecaut & Mamajek's dwarf sequence below 3 800 K, and the luminosity then read its correction off that sequence at that colour: 3 500 K came back as 3 102 K with a correction 1.15 magnitudes too large, anything under about 3 170 K was clamped to B−V 2.00, and the card printed it as a measured "Colour B−V 2.00". CFBDSIR J145829+101343, a 580 K brown dwarf, read "Spectral type ~M6, from colour". temperatureToColorIndex now reads the table itself backwards, interpolating B−V between the two types the temperature falls between, so the temperature and correction read back off the colour are the table's at that temperature; it has no answer outside 2 420 to 31 400 K. The colour is flagged colorFromTemperature, a fifth bit in the photometry byte (the format, README and the ETL's round-trip check follow), and the card prints it "B−V 1.66, from its temperature", marked derived. From cache: 57 archive stars change colour; 54 carry the flag and 3, CFBDSIR J145829+101343 among them, now have none. For the 47 of them the archive gives a luminosity, the one derived from magnitude and colour moves from a median 0.228 dex off it to 0.124; Kepler-445 (3 157 K) from 0.0282 L☉ to 0.0080 against the archive's 0.0079. Its colour goes from 2.00 to 1.67. The card shows the archive's luminosity where it has one since earlier on this branch, so this is the figure used for the rest and for their radii. Controls, each failing its named test: the nearest hotter row taken without interpolating (2 of 803 failed), no refusal outside the table, the flag not encoded, and the card calling the colour measured (1 of 803 each). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
|
f82b5e1c74 |
Hold the published catalogue to what its host radii, distance errors and Gaia-distance flags come to
Three things the branch added could vanish from the data with every check passing, as the review
showed with guarded ETL mutants: dropping st_rad or st_teff from each planet left 0 of 6 354
carrying their host's radius or temperature, storing Gaia's parallax_error in milliarcseconds
rather than over the parallax changed 431 464 distance readouts, and dropping the flag fetchStars
sets relabelled 8 129 HYG stars placed at Gaia's distance "HYG". The round trip compares decoded
with encoded, and the counts of missing bands and errors do not look at what the values are.
validateExoplanets now requires 90 % of planets to carry their host's radius and temperature
(measured 6 030 and 6 054 of 6 354). validateStars requires the median relative error of the
distances at Gaia's to be under 1 % (measured 0.33 %), at most 1 % of stars to have a parallax
distance with an error of a fifth or more (measured 1 109, 0.24 %; the archive's, which are on the
distance and never ranged, are left out), and at least 6 000 HYG stars flagged at Gaia's distance
(measured 8 129). Figures from an ETL run from cache on this branch.
Each proved by a guarded mutant in a scratch copy of the ETL, run from the cache, failing with its
own message: host radius dropped ("Only 0 of 6354 exoplanets carry their host's radius and 6054 its
temperature"), host temperature dropped ("6030 ... and 0"), the Gaia error left in mas ("The median
error of Gaia's distances is 1.92 %"), the same with the median check waived ("17689 parallax
distances have an error of a fifth or more"), and the flag dropped ("Only 0 HYG stars are flagged
at Gaia's distance"); a no-op edit completed. No ceiling is loosened.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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SenrokaiandClaude Opus 5.5
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6d81c45f45 |
Carry the archive's positions back from Gaia DR2's J2015.5, where it publishes them, not J2016
fetchExoplanets placed each star it adds from the Exoplanet Archive by carrying the archive's
position back sixteen years, and
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SenrokaiandClaude Opus 5.5
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62f81f2c43 |
Number the stars the archive places after their host's name, so a refresh keeps each one's id
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SenrokaiandClaude Opus 5.5
|
d93bb1ee2c |
Say that Pluto's tilt is checked against its own IAU pole, not against Horizons
The ETL's obliquity check, its failure message and the renderer spec's test name all compared Pluto's drawn tilt with "the obliquity Horizons gives", as |
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SenrokaiandClaude Opus 5.5
|
a281f22f34 |
Measure every moon and dwarf planet against Horizons from 1950 to 2100, and say on its card how far it strays
The clock reaches AD 1 to AD 3000, but only the planets' cards named a span their elements hold
over; the 25 moons and the four SBDB dwarf planets gave a source and an epoch, though
BodyRecord.orbitSource is documented as "the span they hold over". And the worst offsets the ETL
stated came from twelve New Year's Days: Nereid's year is 360 days, so all twelve fell far from
its periapsis, where a mean ellipse is furthest out. The one date the ETL checked, 2025-01-01, saw
Nereid at 2.6 degrees; it reaches 11.19.
For each moon and each SBDB dwarf planet the ETL now fetches Horizons' ICRF vectors from 1950 to
2100, every other day (daily for Nereid, at an eccentricity of 0.75, and Hyperion, whose row's
eccentricity is a quarter of its real one: every other day gave it 22.14, daily 22.23), and
measures how far the mean elements stray, at the same TDB dates. The card appends it: "JPL SBDB
osculating elements, epoch 2026 Jun 9, within 7.2 degrees of Horizons from 1950 to 2100". Worst
offsets on the real catalogue: the Moon 2.62 (2010 March 27), Phoebe 2.58 (1969, where a comment
claimed "within 2.0"), Phobos 1.26, Mimas 7.43, Iapetus 10.34, Nereid 11.19 (2039 Nov 1),
Hyperion 22.23 (2055 Feb 26), Ceres 7.12 (1953); Io 0.07, Titan 0.06, Eris 0.06.
build.ts recomputes each from the same Horizons positions and fails if an orbit other than
Standish's names no span, if a card states less than it strays, or if a body passes its ceiling:
3 degrees, and Hyperion 23, Nereid 12, Iapetus 11, Mimas 8 and Ceres 8, each explained. The
2025-01-01 check stays for reading errors, its comment no longer passing one date's offsets off as
worst ones. The Sun's note says the moons' and those four's elements were checked from 1950 to
2100, and the date field's description that each card says how far its orbit strays over that span.
In the running app Ceres's, Phobos's and Nereid's cards end "within 7.2", "1.3" and "11.2 degrees
of Horizons from 1950 to 2100".
The CLOCK_WINDOW comment also had the calendars the wrong way at AD 1: proleptic Gregorian dates
are two days behind the Julian calendar there, level from AD 200 to 300, and ten days ahead by
1582. It now says so, and names Ceres's drift where it named Phobos's, which its orbit now carries.
Controls: the ETL measuring nothing fails ("Ceres's orbit ... names no span it holds over"),
rounding the stated figure down fails on Ceres (7.1 against 7.12), and Nereid held to the general
ceiling fails at 11.19; the note and the date field without the span fail their named tests.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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SenrokaiandClaude Opus 5.5
|
97b8dd9dc8 |
Turn the Sun about its IAU pole, once in 25.38 days, as every planet already is
Every body with IAU elements was turned by its pole and W, but the Sun, which is the system's star marker and no BodyRecord, was built with an identity rotation and never touched: its pole pointed at RA 90, Dec 0, 115.03 degrees from the WGCCRE 2015 solar pole (RA 286.13, Dec 63.87), and it stood still where its W turns 14.1844 degrees a day. SUN_ROTATIONAL_ELEMENTS carries NAIF body 10 from pck00011.tpc, and the ETL fails if they are not the kernel's. The scene turns the star marker by bodyOrientation each tick when the star is the Sun, as the renderer turns the planets. In the running app the Sun's drawn pole lies on the IAU's (0.00 degrees) and its map turns 14.1844 degrees between 2026-01-01 and 01-02. The map's longitudes are Solar System Scope's, not Carrington's, so the phase of W is not the Sun's own; the pole and the rate are. Controls: leaving the marker unturned fails "turns the Sun about its IAU pole, once in 25.38 days"; the app's elements off the kernel's (W rate 14.18) fails the ETL. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
|
8e3a494fe9 |
Print Hyperion's eccentricity as JPL measures it now, 0.105, not the archived row's 0.023
The card listed Hyperion's eccentricity under "Measured" as 0.023: the archived JPL satellite row
the orbit is drawn from gives 0.0232. JPL's current table (SAT441) gives 0.105, and Horizons'
osculating orbit ranges 0.074 to 0.132 from 1980 to 2100 (0.1099 on 2025-01-01). The row stays
the orbit: with 0.105 put into it, Hyperion is further from Horizons, not nearer (median 9.6
degrees against 7.8 over 1980-2100, as a reviewer measured), so only the card changes.
BodyRecord.measuredEccentricity carries the figure the card prints where it is not the orbit's
own; the ETL sets it for Hyperion, and buildBodyViewModel prints it. build.ts now checks every
card's eccentricity against Horizons' osculating one on 2025-01-01, within 0.03: measured at most
0.0151 (Phoebe, and the Moon, whose eccentricity swings) once Hyperion prints 0.105, where the
row put it 0.0867 out. The live Hyperion page reads "ECCENTRICITY 0.105".
Controls: the ETL with Hyperion on its row's figure fails ("Hyperion's card gives an eccentricity of
0.0232, where Horizons' osculating orbit has 0.1099"); the view model ignoring the field fails
"prints the eccentricity measured for a moon whose orbit keeps an older one".
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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SenrokaiandClaude Opus 5.5
|
f655a4c0f7 |
Turn Eris once in 15.77 days, locked to Dysnomia, not in the 25.9 hours the SBDB flags as unreliable
Eris took its day from the SBDB's rot_per, 25.9 hours, whose own note reads "Result based on less than full coverage, so that the period may be wrong by 30 percent or so" (Roe et al. 2008). Eris is locked to Dysnomia: its light curve repeats every 15.771 +/- 0.008 days (Bernstein et al. 2023, PSJ 4, 115), Dysnomia's 15.78590-day orbit (Holler et al. 2021; Szakáts et al. 2023, A&A 669, L3). It was drawn turning 14.6 times too fast. Eris's BodySpec now carries that day, 378.504 hours, cited as its radius already cites Sicardy et al., and a spec's measured day comes before its source's. build.ts checks that Eris's day is Dysnomia's orbit within 0.2 per cent. In the running app Eris turns 5.707 degrees in six hours, as 15.771 days gives; on 25.9 hours it turned 83.4. Makemake's SBDB period, 22.83 hours, carries the same flag; it is Hromakina et al. 2019's own result and nothing later overturns it, so it is kept. Control: Eris on the SBDB's period fails the ETL: "Eris turns once in 1.079 days". Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
|
f8ee3ac3ab |
Move Mimas, Tethys and Phobos along their orbits by the terms their IAU W already carried
The IAU W of a locked moon follows its mean longitude, so a term of W that is the moon running
ahead of and behind its mean motion is its orbit's too. Two were in bodies.json's W and in no
orbit: the 71-year libration of the Mimas-Tethys 4:2 resonance, -44.85 degrees on Mimas and
+2.23 on Tethys on the angle S5 = 316.45 + 506.2 T of pck00011.tpc, and Phobos's tidal
quadratic, 9.536e-9 degrees a day squared about J2000. JPL's satellite table has a column for
neither. orbitalTermsOfPrimeMeridian now turns each into the row's meanAnomalyTerms about the
row's own epoch (Phobos's 1950 row gets the quadratic re-centred, which adds to its mean motion
and mean anomaly at the epoch), and the ETL takes them for the three moons named in their specs.
Against Horizons: Mimas on 2026 May 27, near the libration's extreme, 2.24 degrees instead of
43.3; Tethys the same day 0.18 instead of 2.05; Phobos in 2100 1.25 instead of 11.1. On the
ETL's 2025-01-01 check Mimas is 1.56 degrees, so its named 46-degree ceiling is gone. The renderer
spec freezes the Mimas and Phobos vectors.
The day-equals-orbit check checked a number that turns no locked moon: since
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SenrokaiandClaude Opus 5.5
|
70cbdae306 |
Drop the "..." Hipparcos leaves on a spectral type, which read as the app cutting it short
2 127 stars, Sirius among them, read "Spectral type A0m...", in search rows, route options and the star card. The mark is Hipparcos's own: every one of the 3 803 HYG rows ending in it has a HIP number, and the catalogue ends a classification it does not print in full with it. The app truncated nothing, but the text reads as if it had. fetchStars now trims a trailing "..." from HYG's spectral types. The dictionary in stars-index.json goes from 3 056 distinct types to 2 883, and from 598 dotted ones to none. The names, sources and source indices are unchanged, and so is every other column of stars-meta.bin bar the type indices. gzip -9 of the index goes from 4 015 865 to 4 015 205 bytes. build.ts validateStars now fails a catalogue with any type ending in "...". Run with the trim removed, the ETL failed on 2 127 such types. Two ETL runs from cache wrote identical stars-meta.bin and stars-index.json. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
|
5333be615e |
Estimate a spectral type from each star's colour where no catalogue gives one, and say so
383 695 of the 455 608 stars read "Spectral type Unknown", every Gaia star among them, although 380 884 of them carry a colour. The card now gives those the type of the dwarf whose colour is nearest, in the colour's own system, marked as an estimate: TRAPPIST-1, BP-RP 4.90, reads "Spectral type ~M8, from colour", which is how it was classified (M8 V). A star with neither a type nor a colour gets no subtitle rather than the literal "Unknown". The colours are Pecaut & Mamajek's mean dwarf sequence (2013, ApJS 208, 9, table 5), as Mamajek maintains it online (version 2022.04.16, which carries Gaia BP-RP), from B0 to M8.5. B-V cannot tell O types apart (the whole sequence spans 0.03 of it), and BP-RP turns back past M8.5 and is tabulated only from B9. A colour outside the table gets no estimate: 186 BP-RP and 41 B-V colours, among them the blue Gaia DR3 5612323414549657984 at BP-RP -0.15. 380 657 stars get an estimate: F 97 840, G 144 327, K 105 984, M 29 142, A 3 272, B 92. Checked against catalogued types: - 19 433 HYG dwarfs with a B-V: 74.3 % within two subclasses, 95.5 % within five. - 146 Gaia exoplanet hosts the archive types as dwarfs, from BP-RP: 88.4 % within two subclasses, 98.6 % within five. The estimate assumes a dwarf, so a giant reads later than it is (Pollux, K0 III at B-V 0.99, reads K3). It also ignores reddening. The comment says both. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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a81dd491ad |
Say which band each star was measured in, whose catalogue it is, and how sure its distance is
The readout named Hipparcos, Yale and Gliese while 378 775 of the 455 608 stars are described by Gaia DR3, printed one "Magnitude" for G and V alike, and gave every distance to the parsec. The band cannot be read off the star's source, which records whose position it has: 62 002 stars Gaia places keep HYG's V and B-V, and the 575 hosts renamed after their planets are Gaia's, in G. stars-meta.bin gains two byte columns, 14 to 16 bytes a star (6 378 512 to 7 289 728 bytes; gzip -9 2 804 049 to 3 110 991). One holds the magnitude's band (V 76 555 stars, G 378 744, none 309, whose magnitude is a stand-in), which colour the colour index is (B-V 75 203, BP-RP 376 703), and whether the distance is Gaia's parallax. The other holds the distance's relative error as its square root in 255ths: a step is 0.08 % of distance at 1 %, 0.35 % at 20 %, and 100 % is the top. encode, decode, BYTES_PER_STAR_META and the build.ts round trip cover both; no workflow reads the format. Where the errors come from: - Gaia rows keep the parallax_error their query already fetched: median 0.3 %, 90th percentile 1.2 %, at most 20 %, the query's own cut. - A HYG star at Gaia's distance takes the cross-match's parallax_over_error, and a star merged into a Gaia entry keeps that entry's error with its position. - The 3 067 Hipparcos stars that keep their Hipparcos distance, Rigel, Deneb and Alnilam among them, take e_plx from van Leeuwen's 2007 reduction: a new cached query of public.hipparcos_newreduction on the ESA archive, whose 117 955 rows HYG's distances invert. - The archive's stars take sy_disterr1/2 from pscomppars, in a query and cache file of their own so the composite rows already cached were not refetched. - 439 distances have no published error: 357 Gliese rows and 82 archive hosts. Of the errors, 392 786 are 1 % or less and are not printed; 61 156 print as "117 ± 12 pc" to the distance's own digits; 1 196 between 20 and 100 %, and 30 past it, print as the range the parallax gives, since a symmetric error in parallax is a lopsided one in distance. The star card (measured on the dev server) now reads, for example: - Rigel: 265 ± 23 pc, V 0.18, B-V -0.03, source HYG. - Deneb: 433 ± 60 pc. - Alnilam: "476 pc to 833 pc" (Hipparcos 1.65 ± 0.45 mas). - Gaia DR3 5612323414549657984: 111 ± 2 pc, G 4.63, BP-RP -0.15, source Gaia DR3. - Proxima Centauri: 1.30 pc, V 11.01, source "HYG, Gaia DR3 distance". - TRAPPIST-1: G 15.62, BP-RP 4.90, source Gaia DR3. - Kepler-186: V 15.14, source NASA Exoplanet Archive. The neighbourhood's subtitle reads "Gaia DR3 378,775 · HYG 73,556 · NASA Exoplanet Archive 3,277", counted by the catalogue describing each star. build.ts validateStars now fails a catalogue with more than 1 000 stars without a band (309 today) or without a distance error (439). Dropping G from the Gaia rows gave 379 040 without a band, and dropping their parallax_error gave 441 216 without an error; both runs failed. Decoding the catalogue in Node took a median 29 ms before and 24 ms after (nine runs each, within noise). In the app, five cold boots gave a 654-786 ms long task after the data landed and the HUD at 1.83-2.07 s. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
|
1c86584642 |
Carry every body's IAU rotational elements, read from NAIF's kernel of the 2015 report
bodies.json now holds, for 33 of the 38 bodies, the pole right ascension and declination and the prime meridian W of the IAU WGCCRE 2015 report (Archinal et al. 2018), with their rates and the periodic terms. They are read from NAIF's pck00011.tpc, which carries the report in a form a program can read, periodic terms and their angles included. Hyperion (chaotic), Nereid, Eris, Haumea and Makemake have no model in the report. The parser, src/app/shared/astro/rotational-elements.ts, sits beside the other source readers so the unit suite covers it. It reads data blocks only where \begindata stands alone on a line, as the kernel's own prose mentions the token mid-sentence. It reads the Fortran exponent (the Moon's -1.4D-12 d² term) and the degree-2 angles of the Mars system, where Phobos's tidal acceleration lives. NAIF numbers a small body 2 000 000 past its catalogue number, so Ceres is 2000001. Periodic terms under 0.01 degrees are left out. 0.01 degrees moves a point by 0.11 px on the largest body ever drawn (Jupiter at 641 px of radius). That drops 32 terms: - Mercury: 4 (0.0011 degrees and less) - the Moon: 8 of 13 (0.0072 and less) - Mars: 13 (0.00024 and less); its three 0.42-1.59 degree long-period terms stay - Phobos: 1 (0.0063) - Jupiter: 5 (0.0022 and less) - Europa: 1 (0.009) Kept, among others: Mimas's 44.85-degree libration, Triton's 32-degree precession, Miranda's 4.4 and Phobos's 1.14-degree libration. build.ts now checks the elements against Horizons on the real catalogue: - Every body but those five carries elements, and they do not. - The IAU day, 360 over W's rate, is within 1e-4 of Horizons' period. Measured: at most 1.8e-5 (Jupiter). Neptune gets a 0.01 ceiling: 0.89 per cent, because the report takes Karkoschka's 15.9663 h where Horizons keeps Voyager's 16.11. - The spin axis, the pole turned end for end where W runs backwards, is within 0.1 degrees of Horizons' obliquity. Measured: at most 0.058 (Venus, 177.358 against 177.3); Uranus 97.771, Pluto 119.610, Earth 23.435. Full npm run etl passes. Three mutants each fail it on the named check: - W's sign dropped: "Venus's IAU spin axis is 2.642 degrees". - Ceres looked up by catalogue number: "Body ceres has no IAU rotational elements". - W's rate read per century: "Mercury's IAU day ... 3.65e+4". Nothing is drawn from these yet. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
|
4c8e4a02f3 |
Give every planet with a distance a star, from the archive where the catalogue has none
After matching, 4 237 planets still had no star: their hosts are too faint for either Gaia query (fainter than G 12 past 50 pc) or too far (past 250 pc), Kepler-186 at 177.6 pc among them. fetchExoplanets now adds one star per such host from the archive's own figures, 3 277 of them, whenever the archive gives a position and a distance: - position carried back from J2016, where the archive publishes it (741 of the 746 matched hosts moving over 100 mas/yr sit nearer their star carried back, a median 0.11" against 3.47" as published), and placed at sy_dist; - magnitude in V (2 999 hosts), else Gaia G (13), the band the catalogue's Gaia stars are already in; 265 have neither, 128 KMT, 95 OGLE and 32 MOA microlensing hosts at a median 6.2 kpc among them, and take the ETL's faint stand-in of 15; - colour as B-V from the archive's B and V, else from st_teff through a new temperatureToColorIndex (Ballesteros 2012, inverted; the Sun's 5 772 K gives 0.65), else left to st_spectype; - ids from 1 070 000 000, past Gaia's two ranges and under the 2^30 validateStars enforces; source "exoplanet-archive". Hosts past 250 pc are included: 399 of the 3 277 are within 250 pc, 1 962 between 250 pc and 1 kpc, 916 beyond. The drawn budget still chooses what is drawn (70 000 of 455 608). Planets with a star: 2 090 -> 6 327 of 6 354. The other 27 have no distance in either table (Luhman 16 A, mu2 Sco, PSR B1620-26 among them). Systems in the Solar Neighbourhood readout: 1 450 -> 4 736. validateExoplanets now refuses a catalogue where fewer than 99.5 % of planets have a host (measured 99.58 %); dropping the added stars fails it at 2 090, and dropping the composite fill at 6 227. No added star sits within an arcsecond of a catalogue star (validateMerge's twins stay at 23); 5 of the 399 within 250 pc have one within a minute of arc, VHS J125601.92-125723.9 (archive 12.7 pc) 5.8" from a Gaia entry at 21.2 pc the likeliest duplicate. In the app, searching TRAPPIST-1 or Kepler-186 and picking the star enters a system with its seven and five planets drawn. gzip -9: stars.bin 5 030 741 -> 5 067 864 B, stars-meta.bin 2 784 614 -> 2 804 064, stars-index.json 4 003 584 -> 4 015 882, exoplanets.json 342 467 -> 446 532 (host parameters, both commits). Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
|
494fb5616b |
Find the hosts the catalogue already holds, and name them after their planets' star
The archive's default-parameter rows leave sy_dist blank for 100 planets, TRAPPIST-1's seven among them, so the matcher could not place a host the catalogue had drawn since the Gaia nearby query (Gaia DR3 2635476908753563008, 12.47 pc). fetchExoplanets now also reads the Planetary Systems Composite table (pscomppars) and fills a default row's blank host cells from it. Only host columns: a composite row takes each column from its own reference, so orbits still come from the default row alone, one fit per planet. Where both tables give a distance or a position they agree on all 6 225 and 6 352 rows. Three hosts the catalogue holds by name failed the distance ratio test because the archive's sy_dist, from TICv8, contradicts its own parallax: Lalande 21185 (GJ 411) 5.68 pc against 392 mas, Luyten's Star (GJ 273) 5.92 against 263 mas, Struve 2398 B (Gl 725 B) 6.84 against 285 mas. resolveHostStarId now takes the archive's parallax (sy_plx) as a second distance the ratio test accepts. It is a second chance, not a replacement: 47 of 5 959 systems disagree past the tolerance, and for faint far hosts the inverse parallax is the worse figure (K2-238: 538 pc by sy_dist, 6 779 by parallax). Planets on a catalogue star: 2 071 -> 2 090 of 6 354. The 19 gained are TRAPPIST-1 (7), GJ 273 (2), GJ 411 (2), Gl 725 B, HD 62509 (Pollux), K2-65, TOI-2267 A and B, and two brown-dwarf hosts, 2MASS J02192210-3925225 and DENIS-P J082303.1-491201. No planet lost or changed its host. A matched host whose catalogue name is a bare Gaia designation now takes the archive's host name, so search finds TRAPPIST-1, Teegarden's Star, TOI-700, LP 791-18 and K2-18: 575 stars renamed. validateExoplanets refuses a host that is still only a designation, and the star assets are rewritten after the exoplanets for that reason; stars.bin and stars-meta.bin are unchanged. TOI-2267 A and B both land on one Gaia entry, which takes the name TOI-2267 A. Each planet also carries its host's radius, effective temperature and luminosity (10^st_lum), and a mass for 6 344 planets instead of 5 474, from the default row where it gives one and the composite table otherwise, for the star-physics step. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
|
1d42be2ad5 |
Add Charon, the moons of Uranus, Saturn's other large moons and the four dwarf planets past Pluto's table
The solar system stopped at 18 bodies: Pluto without Charon, Uranus without a moon, Saturn with Titan alone, no dwarf planet but Pluto (audit #22). bodies.json now holds 38: the eight planets, the five IAU dwarf planets, and every moon in JPL's mean-element table more than 100 km in mean radius. New: Ceres, Eris, Haumea, Makemake; Mimas, Enceladus, Tethys, Dione, Rhea, Hyperion, Iapetus, Phoebe; Miranda, Ariel, Umbriel, Titania, Oberon; Nereid, Proteus; Charon. Search finds each by name (it indexes bodies.json), each has a body page, and the Sun's system draws them. Where they come from - Moons: the same archived JPL satellite table as the others. Uranus's and Pluto's are given against the planet's equator, with the IAU WGCCRE 2015 poles: Pluto's as the IAU gives it (132.993, -6.163), Uranus's at the end the table measures inclinations from (77.311, 15.175) with its nodes counted 180 degrees on, from the IAU pole's crossing; read without that offset every Uranian moon was 180 degrees from Horizons at every date from 1980 to 2100. - Two rows are corrected where they disagree with JPL's own ephemeris and the reason is known. Pluto's section prints epoch 2000 Jan 1.0; JPL's current table gives Charon's as 2000-01-01.5, and at 1.0 Charon was 27.8-28.2 degrees from Horizons at every date, half a day of its motion. Phoebe's mean motion gives 548.02 days where its Horizons page and the current table give 550.30 (the table's own note says its source misstated retrograde moons' mean motions); on the row's figure Phoebe was 24.6 degrees out by 2025 and 100 by 2075. - Dwarf planets: JPL SBDB osculating heliocentric elements with their epoch (2026 Jun 9), carried at their own n. Against Horizons (heliocentric, 1950-2300; the clock only runs forward from now): Ceres 0.02 degrees in 2025, 1.9 in 2050, 4.0 in 2075, 5.3 in 2100, 11.6 in 2200 (Jupiter pulls on it and nothing here carries that); Eris within 0.06 to 2100 and 0.5 to 2300; Haumea within 0.35 to 2100; Makemake within 0.25 to 2100 and 1.7 by 2200. - Size and spin: Horizons pages for the moons (Charon 606 km, Miranda 235.7 as the mean of its three axes). The SBDB for Ceres (469.7 km, 9.074 h) and for the other three's spins (Eris 25.9 h, Haumea 3.915 h, Makemake 22.83 h). Neither source nor the WGCCRE 2015 report has a radius for Eris, Haumea or Makemake, so each carries its stellar-occultation measurement: Eris 1163 km (Sicardy et al. 2011), Makemake 715 (Brown 2013, the mean of 1434 x 1434 x 1422 km), and Haumea 797.6, the radius of a sphere of its volume: it is triaxial, 1161 x 852 x 513 km (Ortiz et al. 2017), and is drawn as that sphere. - Rotation uses the branch's model. Every moon is locked except three: Hyperion's page says "Chaotic" and Nereid's gives no spin, so both are left still; Phoebe turns in 9.274 h. - Charon carries massRatio 0.12205, the GM ratio of the two Horizons pages (106.10 / 869.326), so it and Pluto are drawn round their barycentre 2 131 km from Pluto's centre. Validators (tools/etl/build.ts, on the real catalogue; full npm run etl passes) - Offsets from Horizons on 2025-01-01, new bodies: dwarf planets at most 0.016 degrees (Ceres), under the 0.25 ceiling; moons Dione 0.009, Ariel 0.058, Rhea 0.070, Charon 0.111, Oberon 0.142, Titania 0.185, Umbriel 0.219, Proteus 0.245, Enceladus 0.309, Phoebe 0.984, Miranda 1.162, Tethys 2.042, under the 2.5 ceiling, which is unchanged. - Four moons get their own ceiling, each just above its worst offset at twelve dates from 1980 to 2100 and each named with its reason: Mimas 46 (measured up to 44.7: its resonance with Tethys swings its longitude 44 degrees either way over 70.8 years, which the table has no column for), Hyperion 21 (20.2; held in resonance by Titan, and the row's eccentricity 0.0232 is under a quarter of the current table's 0.105), Iapetus 11 (10.1; the row sits 9.4 degrees behind Horizons at its own epoch and keeps that, with its plane within 0.07 degrees and its period within 0.001 per cent), Nereid 3 (2.6 in 2025; eccentricity 0.75). - New checks: every body has a radius over 0 (Charon's would have been 0 before the page parser learnt its form); a freely spinning moon is not locked; a moon with a mass ratio puts the barycentre outside its planet; there are 5 dwarf planets. - Negative controls, each a full npm run etl on the real catalogue refused with the named message: Uranus's node offset removed (Miranda 172.50 degrees), Charon at the printed epoch (28.08), Phoebe on the row's mean motion (24.61), Charon's radius unread (no radius), free spinners locked (Hyperion), mass ratio inverted (barycentre 17 460 km out). Measured in the running app (port 4311): the Sun's system has 38 members ("13 + 25 moons"); Charon comes back to within 0.0004 degrees of where it started after 6.38723 days and is 179.98 degrees round after half that; Pluto is 2 130.6 km from the barycentre and Charon 17 456.8, exactly opposite; Saturn's moons in order of distance now: Mimas 185 617 km, Enceladus 238 042, Tethys 294 648, Dione 376 805, Rhea 526 964, Titan 1 231 389, Hyperion 1 470 453, Iapetus 3 637 059, Phoebe 11 740 900. At the arrival framing the dwarf planets are held at the 3 px floor and the moons at 1.5 px, half their planet's drawn radius, the scene's existing rule. Searching Charon, Enceladus, Ceres, Titania, Makemake and Phoebe each finds the body; the body pages show Charon 6.39 d and 606 km, Titania 8.71 d, Ceres 4.6 yr and 470 km, Haumea 283 yr and 798 km, Hyperion 21.3 d, each with its orbit source. Long tasks on entering: see the previous commit. The Sun's note now says the four dwarf planets are on the SBDB's osculating elements. Holding Eris's orbit, the arrival framing widens: 192 AU of range on a 1600 x 1000 window, under the 200 AU ceiling. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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b0d7989c6f |
Read moons given against their planet's equator, and dwarf planets from the Small-Body Database
Two sources the missing bodies need, read and tested before any body uses them.
JPL's satellite table gives Uranus's and Pluto's moons against the planet's equator ("Mean
equatorial orbital elements") rather than a Laplace plane, and does not print that equator's
pole. parseSatelliteMeanElements now takes the pole from its caller for such a section and reads
the row against it exactly as against a Laplace plane's; it throws if a section is equatorial and
no pole was given, or a pole was given for a section that is not. Read as ecliptic elements, which
is what the old code would have done, Titania is 88 degrees from Horizons on 2025-01-01. The
section's plane is now the nearest heading above the row, with the ecliptic as before where there
is none.
Ceres, Eris, Haumea and Makemake are in none of Standish's tables. parseSmallBodyElements reads a
JPL SBDB answer (sbdb.api?sstr=...&phys-par=1&full-prec=1): the osculating heliocentric elements
against the J2000 ecliptic, carried round at their own n with nothing turning, and half the
published diameter and the rotation period where the answer has them. full-prec matters: without
it SBDB rounds to three figures, Ceres's n to 0.214 degrees a day for 0.2143045, 1.1 degrees out
within a decade. The fetcher, tools/etl/lib/mean-elements.ts, caches the answer like the others.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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SenrokaiandClaude Opus 5.5
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c01d3ec2bc |
Read OpenNGC's addendum, so the Pleiades and the Large Magellanic Cloud are on the map
OpenNGC keeps the objects no NGC or IC number covers in a second file, addendum.csv, with the same 32 semicolon-separated columns as NGC.csv. The ETL only ever fetched NGC.csv, so the brightest deep-sky object in the sky, the Large Magellanic Cloud (V 0.29), was missing while the Small one was drawn, and so were the Pleiades (M45), the Hyades, the Horsehead and the Coalsack. fetchDeepSky now fetches the addendum beside NGC.csv, caches it as openngc-addendum.csv, and runs its rows through the same loop. Of its 64 rows, 27 pass the existing filters: all 22 named or Messier rows except M40, which OpenNGC types as a double star, and M102, typed as a duplicate of M101; plus seven anonymous open clusters brighter than V 9 (H05, H20, H21, Mel071, Mel101, Mel105, MWSC3171). deepsky.json goes from 463 to 490 objects (galaxies 73 -> 85, clusters 294 -> 306, nebulae 96 -> 99), with no existing record changed. Messier coverage goes from 106 to 107 of 110. 340 of the 490 have a distance: the Pleiades 135.8 pc and the Coma Star Cluster 85.9 pc from their parallaxes; the Hyades and the Local Group dwarfs honestly have none. validateDeepSky now requires the Andromeda Galaxy and the Small Magellanic Cloud from NGC.csv, the Large Magellanic Cloud and the Pleiades from the addendum, and at least 107 Messier objects. Both checks were run against the real catalogue with the addendum removed: the ETL fails on "Deep-sky object ESO056-115 is missing", and with the required list emptied, on "Only 106 Messier objects were produced". In the app, on the dev server: 490 sprites. The Pleiades sprite lies 0.00182 deg from Alcyone (0.00183 deg from the published coordinates); the LMC 18.4209 deg from Canopus and 26.8215 deg from Achernar (18.4209 and 26.8215 published); the Hyades 2.2591 deg from Aldebaran (2.2591). The twelve labelled deep-sky objects now open with the Large Magellanic Cloud and the Pleiades and include Brocchi's Cluster, in place of h Persei, chi Persei and NGC 2516. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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cdc0cf4678 |
Read the Horizons pages the missing moons are written in, and give triaxial bodies their mean radius
The pages of the moons this branch is about to add state their size and spin in forms the ETL
did not read. Charon's gives "Radius (km, IAU2015) = 606", which none of the radius patterns
matched, so it would have come out at radius 0. Phoebe's gives "Rotational period = 9h 16.438 m",
which the hours-or-days pattern read as 9 hours flat instead of 9.274. Pluto's and the moons' GMs
are now read too ("GM (planet) km^3/s^2 = 869.326" on Pluto's page, "GM (km^3/s^2) = 106.10" on
Charon's), for placing a pair's barycentre.
Miranda and Ariel, like Phobos and Deimos already, give three semi-axes, "240x234.2x232.9". The
first figure was taken as the radius, which is the longest axis. A triaxial body now gets the
radius of the sphere of its volume, the cube root of the product, which is how the IAU states a
mean radius. That changes two bodies already shipped: Phobos 13.1 -> 11.06 km (IAU 11.08) and
Deimos 7.8 -> 6.20 km (IAU 6.2). Nothing else in bodies.json moves.
The page parsers move from tools/etl/lib/horizons.ts to src/app/shared/astro/horizons-page.ts,
as the mean-element parsers did, so the unit suite runs their tests; the ETL imports them. A
small body's command ("1;" for Ceres) is now URL-encoded: sent raw, the semicolon made Horizons
refuse the request ("one or more query parameter was not recognized").
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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SenrokaiandClaude Opus 5.5
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74b93a0428 |
Fill in the Sun's faint neighbours from Gaia, and fold the Gliese entries they repeat
Gaia's G < 12 cut took a quarter of what lies within 10 pc: the red, brown and white dwarfs most of the neighbourhood is made of, which the map only had where Gliese happened to list them. Teegarden's Star was missing, and with it its three planets' host. A second query fetches the complement out to 50 pc: G >= 12 or no G, parallax > 20 mas, with pmra/pmdec so the J2016 -> J2000 propagation applies. The quality filter was chosen by counting. Parallax over error > 5 keeps 39 751 of the 39 764 sources that pass the floor, but the Gaia Catalogue of Nearby Stars (GCNS; Gaia Collaboration, Smart et al. 2021) rejects 11 752 of them as spurious: median G 20.2, astrometric excess noise 5.4 mas against 0.15 for the ones it keeps, 6 933 toward the Galactic centre. So the query joins the GCNS main table (EDR3 astrometry and source ids, which DR3 carries unchanged) and keeps 28 012 rows; the error cut stays and costs no GCNS source, brown dwarfs included. The query has its own row-count floor (28 012) and the row-limit cap, and is ordered by (phot_g_mean_mag, source_id); a second ETL run reproduced stars.bin, stars-meta.bin and stars-index.json byte for byte. Its ids start at 1 050 000 000, clear of the main query's and under 2^30, which V8 keeps unboxed: numbered from 2 000 000 000 they made the app's boot task 230 ms longer (medians of five interleaved runs, 1.41 s against 1.18). validateStars now refuses an id outside 0 to 2^30. The Gliese entries these stars duplicate were not folded: HYG carries them with positions off by up to a minute of arc and photometric distances, so they missed the 15" tolerance or failed the distance test. Their proper motions, which Gliese measured well, give them away: isSameStar now takes two entries moving within 20 % of each other as one star up to 60" apart, whatever their distances, brightness still permitting. Of the 602 Gliese-only rows left without a counterpart, 253 have such a Gaia entry; with every entry shifted a quarter degree, none does. fetchStars passes HYG's motions only for rows without Hipparcos astrometry: given them too, 15 Hipparcos stars took a co-moving companion's Gaia entry and the cross-catalogue pairs under an arcsecond went from 23 to 35. Of HYG's 1 200 stars fainter than V 12 within 25 pc, 1 024 now sit on a Gaia position (325 before); of the 176 left alone, 43 still have a Gaia entry 3-60" away (218 without the motion rule), some of them real companions. Measured on the rebuilt catalogue, against the GCNS (sources with parallax > 100, 40 and 20 mas): within 10 pc 336 -> 372 (GCNS 312; the map adds 60 HYG-only stars) within 25 pc 3 652 -> 5 560 (GCNS 5 111) within 50 pc 13 702 -> 40 916 (GCNS 40 231) 452 331 stars (+27 214). Proxima, Barnard's Star, Wolf 359, Rigel, Deneb and Alnilam are all present by name; Teegarden's Star is Gaia DR3 35227046884571776 at 3.83 pc and hosts its three planets. Luhman 16 is not in Gaia DR3 with a parallax (5353626573555863424 has a two-parameter solution) and stays absent. 94 more exoplanets find a host (2 071), none changes host. TRAPPIST-1 is now drawn (Gaia DR3 2635476908753563008, 12.47 pc) but its planets are not yet matched to it. Merge gate, ceilings unchanged: HYG rows without a Gaia counterpart 12 352 -> 11 554 (ceiling 15 000; 10 886 before the naked-eye stars), cross-catalogue pairs under an arcsecond 23 -> 23 (ceiling 100). The gate's comment now accounts for the survivors by magnitude. gzip -9 sizes against the catalogue before both changes: stars.bin 4 711 922 -> 5 030 741 B, stars-meta.bin 2 576 213 -> 2 784 614 B, stars-index.json 3 724 855 -> 4 003 584 B (+806 KB, 7.3 %). Boot on the dev server, five interleaved cold runs: the task that indexes the catalogue after the data lands, median 1 072 -> 1 182 ms; HUD shown, median 2 622 -> 2 716 ms. This machine measured 0.82-1.30 s for the same baseline task today, above audit #25's 627-843 ms. The drawn-star budget is unchanged. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com> |
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SenrokaiandClaude Opus 5.5
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48319c3fe2 |
Move the solar system on JPL's mean elements, so it stays right as the clock runs
Every body carried one set of osculating elements from Horizons at 2025-01-01, run forward by
Kepler with a GM from a table of mass ratios. That set is exact at its instant and drifts from
then on, and the clock now runs a month a second: the Moon, with Earth's mass ratio lacking its
own and the osculating axis, went round in 27.70 days instead of 27.32, 66 degrees out after a
year, and its locked face was spun at the same wrong rate.
Planets and Pluto now take Standish's Table 2a/2b ("Keplerian Elements for Approximate
Positions of the Major Planets"): elements against the J2000 ecliptic, their rates per century,
and the b, c, s, f terms of Jupiter to Pluto, fit for 3000 BC to AD 3000. Table 1 is closer near
the present (Saturn 0.23 degrees at worst 1950-2100, against 0.32 here) but is only fit for
1800-2050, and by AD 3000 has Saturn 4.3 degrees out where Table 2 holds every planet within 0.3.
The moons take JPL SSD's satellite mean elements: sidereal mean motion n to ten figures, the
periods of their node and periapsis, and each one's local Laplace plane by its pole. They
propagate with n itself, never a GM: gmForParent and its mass table are gone. Horizons still
gives size, spin and obliquity.
Both tables are read from the Internet Archive's copy of JPL's pages, pinned to one capture: the
live approx_pos page has dropped Pluto, and the live sats/elem page has dropped n and rounds the
period to four or five figures (Phobos 0.3187 d, a revolution out within a decade).
What the tables leave implicit, measured against Horizons before it was accepted:
- The precession periods are magnitudes. A node regresses on a prograde orbit and advances on a
retrograde one; a periapsis advances except where a resonance forces the eccentricity. Io's
and Europa's follow their conjunction line backwards at 2 n(Europa) - n(Io) = 0.74 degrees a
day, which is exactly the 1.625- and 1.394-year periods in the table. Read as advancing, Io
was 0.9 degrees out and Europa 2.1.
- On a retrograde orbit the node's turning is added back to the mean anomaly. Taken off, Triton
drifted a degree a year, 105 degrees by 2100.
- The Laplace frame's x axis is where the plane rises through the ICRF equator, RA of the pole
plus 90. Read against the ecliptic, Io was 2.8 degrees out, Phobos 54 and Titan 127.
Orbit lines are now drawn in their own plane and turned by a quaternion each tick, so a turning
node carries the line with the body: fixed at one date, the Moon's line would be up to 69 000 km
off it nine years on. The Earth row is the Earth-Moon barycentre, 4 700 km from Earth, 0.002
degrees from the Sun. A tidally locked moon's day is now 360 / n, its sidereal period (the Moon
27.321662 d), so it stays locked to the orbit it is drawn on.
Angular error against Horizons VECTORS (ICRF, TDB; heliocentric for planets, planet-centred for
moons), degrees, read from the live renderer's markers in the running app:
body 1950-01-01 1975-01-01 1987-07-23 2000-01-01 2025-01-01 2037-03-06 2050-01-01 2075-01-01 2100-01-01 max
mercury 0.004 0.002 0.003 0.002 0.002 0.001 0.000 0.002 0.000 0.004
venus 0.003 0.007 0.003 0.004 0.004 0.004 0.003 0.004 0.004 0.007
earth 0.003 0.008 0.002 0.005 0.004 0.009 0.003 0.002 0.003 0.009
mars 0.009 0.010 0.008 0.024 0.009 0.012 0.009 0.011 0.028 0.028
jupiter 0.063 0.030 0.171 0.135 0.013 0.020 0.056 0.041 0.075 0.171
saturn 0.080 0.064 0.018 0.320 0.066 0.114 0.044 0.164 0.177 0.320
uranus 0.018 0.169 0.068 0.050 0.101 0.015 0.141 0.017 0.114 0.169
neptune 0.070 0.028 0.004 0.021 0.036 0.037 0.013 0.029 0.072 0.072
pluto 0.045 0.054 0.041 0.033 0.019 0.020 0.023 0.027 0.026 0.054
moon 0.486 1.928 0.127 0.631 1.407 1.086 0.720 0.339 1.180 1.928
phobos 2.068 0.294 0.881 1.113 0.313 0.636 2.089 5.862 11.099 11.099
deimos 0.077 0.043 0.310 0.066 0.164 0.068 0.034 0.468 0.044 0.468
io 0.021 0.015 0.010 0.019 0.009 0.035 0.006 0.011 0.022 0.035
europa 0.036 0.039 0.053 0.064 0.078 0.032 0.006 0.034 0.044 0.078
ganymede 0.132 0.103 0.018 0.007 0.023 0.054 0.091 0.118 0.044 0.132
callisto 0.040 0.019 0.023 0.019 0.038 0.008 0.060 0.119 0.056 0.119
titan 0.003 0.019 0.023 0.023 0.027 0.028 0.048 0.008 0.014 0.048
triton 0.051 0.029 0.009 0.021 0.052 0.048 0.063 0.089 0.137 0.137
Three miss what was hoped for, and why:
- Jupiter 0.17, Saturn 0.32, Uranus 0.17 against the 0.1 hoped for: short-period perturbations
of the giants by one another, which no Keplerian fit carries. Standish states his own Table 2
errors as 600, 1 000 and 2 000 arcseconds (0.17, 0.28, 0.56 degrees). Out to AD 3000, measured
at 1800, 2200, 2400, 2600 and 3000, every planet stays within 0.3.
- The Moon, 1.9: evection (1.27) and variation (0.66), which a mean ellipse leaves out.
- Phobos, 2.1 until 2050, then 5.9 in 2075 and 11.1 in 2100, growing as the square of the time:
its tidal acceleration, which the table has no column for. Its elements are MAR080's, epoch
1950. The map's dates are also UTC where the elements are TDB, 69 s today,
which is 0.9 degrees of Phobos and nothing for anything else.
Held in place by:
- build.ts: each body's mean elements against Horizons' own osculating elements on the ETL's
2025-01-01, at most 0.25 degrees for a planet and 2.5 for a moon (measured: Uranus 0.101, the
Moon 1.407; a regressing Triton node reads 10.24 and fails), and every moon's day equal to its
sidereal period (a 1% error fails).
- Unit tests freezing nine Horizons vectors (Earth 2100, Jupiter 1950, Saturn 2075, Pluto 1975,
the Moon 2050, Io and Europa 1950, Titan and Triton 2100) through SystemOrbitsRenderer, the
Moon kept on its own turning line, the retrograde rule, the Standish terms, the Laplace frame,
and both table parsers. Nine mutants each fail the test named for them, and the two
validators each refuse a mutated build of the real catalogue.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
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SenrokaiandClaude Opus 5.5
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c64eea0803 |
Keep every star the naked eye sees, Rigel, Deneb and Alnilam among them
The 250 pc cutoff took 1 543 of HYG's 8 920 stars of V 6.5 or brighter:
1 339 that both surveys put past it and 204 HYG has no distance for. Five
of the fifty brightest stars in the sky were gone (Rigel, Deneb, Alnilam,
gamma-2 Vel, Wezen), and Naos, Sadr, Aludra and Arneb with them, while
11th-magnitude Gaia stars at the same distance were drawn. The cutoff
bounds a download, not what the sky shows.
placementDistancePc now keeps a star of V 6.5 or brighter at any distance,
at the better of its two distances as before: Gaia's where the archive's
Hipparcos cross-match has a usable parallax, Hipparcos's otherwise. Gaia
saturates on the brightest, so Rigel (264.6 pc), Deneb (432.9), Alnilam
(606.1), Wezen (492.6), Naos, Sadr, Aludra and Arneb sit at their
Hipparcos distance. 1 502 HYG rows come back, 165 of the 206 without a
Hipparcos distance among them because Gaia measured them; 36 fold into a
Gaia entry. 41 naked-eye stars stay out because neither survey gives them
a distance: beta Phe, Polis, Mu Cep, Rho Cas, Eta Car, Alp Cam, Phi Cas,
Chi Aur, Psi-1 Aur, theta-1 Ori, Omi-1 Cen, 66 Ori, 16 Sgr, 10 Sge and 27
HD stars.
Measured on the rebuilt catalogue: 425 117 stars (+1 466), 8 301 of them
past 250 pc (+1 466), the same 336 within 10 pc and 3 652 within 25 pc.
Merge gate: 12 352 HYG rows without a Gaia counterpart (was 10 886; the
ceiling of 15 000 is unchanged, and its comment now counts the naked-eye
stars among the survivors) and the same 23 cross-catalogue pairs under an
arcsecond. Five more exoplanets find their host: HD 81817 b and c,
HD 158996 b, HD 208527 b, HD 220074 b. gzip -9 sizes: stars.bin
4 711 922 -> 4 728 315 B, stars-meta.bin 2 576 213 -> 2 587 977 B,
stars-index.json 3 724 855 -> 3 731 763 B.
The brief behind this also asked to cut once on the best distance, which
would drop the 6 835 stars Hipparcos puts inside 250 pc and Gaia outside.
Those already sit at Gaia's distance (
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SenrokaiandClaude Opus 5.5
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c38a42cbcb |
Fix what the review of this branch found, starting with the pick rule it only claimed
The off-screen rule for clicks was described in
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