08534279fb9ded8e1ba1a8b17f759ceab4138543
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Commits
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  SenrokaiandClaude Fable 5
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08534279fb |
Bring Gaia to HYG's epoch before merging, and keep a star's name when it matches
Gaia DR3 gives positions for J2016.0, HYG for 2000.0, and the merge matched them on the sky to one arcsecond without propagating any proper motion. Sixteen years of motion is 62" for Proxima and 166" for Barnard's Star, so every star faster than ~62 mas/yr — most of the nearest ones — was kept twice, some 23 000 in all. The slow ones were matched, and lost: the merge kept Gaia's row whole, so 102 proper names, 1 336 Bayer/Flamsteed names and 32 000 spectral types became "Gaia DR3 <id>" and "Unknown", and 92 named exoplanet hosts handed their planets to their anonymous twin. Gaia is now asked for its proper motions and carried back to J2000 before it leaves the fetcher. HYG is placed from its own x/y/z columns, which are right where its `ra` is not: that column was carried from the Hipparcos epoch without the cos δ its motion needs, 17.9" off for Proxima. A match combines the two entries — Gaia's position, HYG's name, type, magnitude, colour and id — instead of choosing one. The tolerance is 15" with a five-magnitude guard, both set by measurement: 55 457 pairs sit under 1" once the epochs agree, the Gliese-only entries up to 12" (Ross 248), shifting every entry a quarter of a degree finds 16 chance neighbours at 15", and the guard keeps Sirius out of Sirius B's entry. Entries of one source are never merged with each other: the 1 411 Gaia doubles resolved under 1" are two stars, not one. Regenerated: 425 071 stars (was 447 410), 56 082 of them Gaia positions carrying HYG identities; no HYG id or name lost; the sixteen stars nearest the Sun carry no survey designation; 196 residual doubles, all components 17" or more from their counterpart. Five planets of four bright giants (7 CMa, HD 81688, omi UMa, xi Aql) lose their host link: their Gaia distance sits 0.7–1.1 pc from the archive's Hipparcos-based one, past the 0.5 pc the host match allows. Matching hosts on the sky rather than in space, as the merge does, is the follow-up. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01QL6F9Bgfh8SgAiAAcPB9Hw |
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SenrokaiandClaude Opus 5
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7a112e4bb3 |
Answer the review: HYG's own last-resort name is a designation too
Junie: a HYG star that fell all the way through the ETL's naming chain -- no proper name, Bayer, Flamsteed, HD, Gliese or HIP -- is called "HYG <id>", and with `source: 'hyg'` the predicate was looking for a lower-case "hyg " prefix and calling it named. None in the current catalogue, but the path is in `tools/etl/fetchStars.ts` and a refresh could walk it. Fixed in the table rather than in the predicate: `hyg: 'HYG'` next to `gaia: 'Gaia DR3'`, so the encoder, the decoder and the predicate all read the one rule. The sourceless case reads the same entry instead of repeating it. npm test 609/609, build and ETL typecheck clean. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014fcUfL82nvyh9VebX1Fz6w |
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SenrokaiandClaude Opus 5
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f14e252b19 |
Name the neighbours that have a name, before the ones that only have a number
The neighbour ring exists to say where you are. Since the catalogue refresh it has been spending one of its four places in Sol on "Gaia DR3 5853498713190525696" -- a nineteen-digit survey id for the star printed beside it as Proxima Centauri, the same star twice -- and that duplicate row pushed Barnard's Star off the ring altogether. 91.9% of the refreshed catalogue is named that way. Named stars now come first, and survey designations fill in only where fewer than four named ones are in reach. The line between the two is the one the catalogue format already draws: a name is a designation when it is what the star's source would generate for it. Judged by the prefix rather than by rebuilding "prefix id" from the row, because the number after "Gaia DR3" is the survey's own id, which the 32-bit row id cannot hold -- a round trip through the id would have called every one of those stars named. The preference lives on the index as `nearestPreferring`: the preferred pass exhausts the search before the fill runs, so a named star is never outranked by a nearer unnamed one. That is the whole point of asking. The end-to-end spec names Barnard's Star again, on purpose. The four nearest named stars to the Sun are a fact about space, not about which catalogue was refreshed last, and without this change that is exactly the label that vanished -- checked by running the spec with the preference stashed: it fails on that line, and passes with it back. npm test 609/609, npx playwright test 16/16 under CI=true --workers=2. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014fcUfL82nvyh9VebX1Fz6w |
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SenrokaiandClaude Fable 5
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307fd41be8 |
Keep a place, and come back to it
Restores the commit reverted off the routing branch, which is where it was committed by mistake. The change is unmodified; only its branch is. The map had no memory. Every visit started at the same overview, and a system worth returning to had to be found again by name each time. A mark on the readout and on a body's panel now keeps it, a Bookmarks tab lists what has been kept, and choosing one goes there — a star by flying into its system, a body by opening its page. Local storage, not an account. This map asks nobody to sign in, and a list of stars somebody liked is not worth a server. Every read of that store is defensive, because it is a string a person can edit, another tab can write, and a browser can refuse to hand over at all: a bad entry is skipped rather than losing the rest, duplicates are collapsed since two entries for one place would each toggle the other's control, the list is bounded so a hand-edited store cannot decide how much this renders, and where storage is denied outright the bookmarks still work for the visit — they just do not outlive it. The name is stored alongside the id rather than looked up, so the list reads before the catalogues have loaded, and a bookmark to something a later catalogue no longer holds still says what it was instead of decaying into a bare number. The tab is offered even when it is empty, and says what the mark does: a tab that appears only once you have already found the feature is a tab that never taught anyone anything. Choosing a kept place hands the panel back to the readout, the same move as choosing a search result and for the same reason. That behaviour is what the end-to-end spec caught missing — the readout it asserted on did not exist, because the panel just used was still covering it. Verified: build clean, 587/587 unit, 11/11 end-to-end, design detector clean, screenshots at 1440x900 and 390x844. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016jxMkwA2rbicdGxHosecYi |
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Senrokai
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9cdd8f9388 |
Revert "Keep a place, and come back to it"
This reverts commit
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SenrokaiandClaude Fable 5
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bd3a5a48c9 |
Keep a place, and come back to it
The map had no memory. Every visit started at the same overview, and a system worth returning to had to be found again by name each time. A mark on the readout and on a body's panel now keeps it, a Bookmarks tab lists what has been kept, and choosing one goes there — a star by flying into its system, a body by opening its page. Local storage, not an account. This map asks nobody to sign in, and a list of stars somebody liked is not worth a server. Every read of that store is defensive, because it is a string a person can edit, another tab can write, and a browser can refuse to hand over at all: a bad entry is skipped rather than losing the rest, duplicates are collapsed since two entries for one place would each toggle the other's control, the list is bounded so a hand-edited store cannot decide how much this renders, and where storage is denied outright the bookmarks still work for the visit — they just do not outlive it. The name is stored alongside the id rather than looked up. That way the list reads before the catalogues have loaded, and a bookmark to something a later catalogue no longer holds still says what it was instead of decaying into a bare number. The tab is offered even when it is empty, and says what the mark does. A tab that appears only once you have already found the feature is a tab that never taught anyone anything. Choosing a kept place hands the panel back to the readout, which is the same move as choosing a search result and for the same reason: the panel has done its job and the thing to look at is now the scene. That behaviour is what the end-to-end spec caught missing — the readout it asserted on did not exist, because the panel that had just been used was still covering it. Verified: build clean, 587/587 unit, 11/11 end-to-end including a spec that keeps Earth, leaves the page, comes back to it from the list and forgets it, and one that keeps Proxima Centauri, flies out to the field and flies back in by what was kept. Design detector clean, screenshots at 1440x900 and 390x844. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016jxMkwA2rbicdGxHosecYi |
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SenrokaiandClaude Fable 5
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68a919bd84 |
Route between stars, through the crossings a chosen range allows
The map could say where a star is and what is near it, and nothing about getting from one to another. This adds the question and the answer: pick a departure and a destination, choose how far a single crossing may be, and get the chain — how many jumps, how far in total, and every star on the way, each one a step you can fly to. A jump link is not a feature of space. There are no corridors out there; a link is a question asked of the catalogue, which is why the range is the user's control rather than a constant. Two facts about that catalogue decide what the answers look like, and both are stated in the code because they read as defects otherwise. It is magnitude-limited, so it is dense around the Sun and thins with distance — within 50 pc a 3 pc range links 99% of it into one piece, while over the whole 250 pc reach the same range leaves most stars alone. And a gap in it is a gap in what has been catalogued, not in what is there. That is why "no route" is not the end of the answer. Where no chain exists at the range asked for, the panel says which range would open one — the chain whose longest hop is as short as possible, found by the same search with the cost of arriving somewhere being the worst hop taken rather than the sum — and offers that number as a control to accept. Departure defaults to wherever the view already is, so one field is usually enough. Sol to Vega at 3 pc: four jumps, 10 pc, by way of Barnard's Star, Struve 2398 B and HD 155876. Narrow it to 0.8 pc and it says 2.26 would reach. The graph is drawn as one buffer of line segments and the route as a second, brighter one over it, with the graph stepping back while a route is up: near the Sun the links are a haze, and a thread through a bright cloud is not a thread. Both fade out with the local layer, since from outside the Galaxy the graph is a smear. Two measurements shaped this. Asking the index for each star's neighbours in turn — sixty-eight thousand sorted lists, thrown away — took eight seconds; the grid now walks its own cells once and pairs them, which takes a quarter of one. And the range control emits per pixel dragged, so the rebuild waits for the hand to settle. Three defects fixed on the way, all older than the routing: hud-acquire animated with fill-mode `both`, which leaves its closing keyframe applied for good — and that keyframe carries a clip-path. Every panel wearing it has been clipping its own box ever since, so anything that had to escape one was cut away and could not even be clicked. Nothing had needed to escape until this panel's dropdown opened upward. The routing fields returned nothing when typed into before the catalogue finished loading, and stayed nothing until the next keystroke. The options are derived from the query and the index together now, so they appear when the second of the two arrives, whichever that is. And a link was `3-7` walking one way and `7-3` walking the other, which is two links to anything comparing them. Verified: build clean, 571/571 unit, 9/9 end-to-end including two new specs — one plotting Sol to Sirius, one narrowing the range until there is no route and accepting the one it names — design detector clean, screenshots at 1440x900 and 390x844. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016jxMkwA2rbicdGxHosecYi |
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SenrokaiandClaude Fable 5
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44c6a1f15e |
Name the neighbours, from inside the system
A system view could say everything about the star it was inside and nothing about where that star was. The four nearest catalogue stars are now named around the edge of it, each with its distance, each a button that flies there — so a chain of neighbours can be walked without pulling back out to the field between hops. These are bearings, not sky positions, and that is the one deliberate compromise here. A true direction was tried first and does not work: at this field of view the visible cone is about 30 degrees, so on average one neighbour in fifteen falls inside the frame — measured, not guessed, at one label of four in Sol and none at all after a small orbit. What survives the ring is the half of the direction a viewer can act on, which way to turn to face it, and the ring reads as instrument rather than as scene because it sits at a fixed radius. Real distance was never an option: Proxima is 268 000 AU from Sol, thirteen far planes out, so the distance goes on the type line. Proximity is answered by a new pure module rather than by a scan. A uniform grid over the catalogue answers both "the k nearest to this star" and "every star within n parsecs", the second being what the jump-link graph in the next PR is built from — one scan per node, and the quadratic would show. Its spec pins the grid against a brute-force sweep of a pseudo-random cloud, because a spatial index is an optimisation and never a different answer. Where the ring meets the HUD, the HUD wins: placement is given the boxes the readout, the strip and the object card occupy, and slides a name along the ring until it clears them, or drops it rather than print it half hidden. That rule is a pure function with its own spec. Four defects found while verifying this, three of them older than it: The dock's flex column was pointer-events-auto and as wide as its strip, so an invisible band above the strip swallowed every click in it — including, but not only, a neighbour's. The column is transparent now and each surface opts back in. The ring was sized against the frame's height alone, which on a phone held upright put it a viewport and a half wide: no neighbour was reachable on any portrait screen. It is sized against the shorter side. Picking a search result reopened the readout, which on a narrow viewport is a sheet over most of the scene — reopening it onto whatever was just flown to. Below sm it now folds away. A selectable label's two lines are adjacent spans, so it announced as "Sirius2.64 pc"; it carries an explicit label saying what it does. Verified: build clean, 558/558 unit, 7/7 end-to-end including a new spec that flies Sol to Barnard's Star by its label, design detector clean, screenshots at 1440x900 and 390x844 in Sol and Proxima Centauri, and the keyboard path walked: both names are in the tab order, focusable, with the accent ring. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016jxMkwA2rbicdGxHosecYi |
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Claude
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650b3b37a0 |
Fix what the review confirmed: anchoring, overlap, honesty, one voice
Fourteen findings from an adversarial review pass, applied together because most share two roots — geometry written against assumptions the renderer does not hold, and a design language spelled out longhand until it drifted. Correctness. The leader line pointed at empty space: CSS2DObject centres a label on its anchor by default, and margin only nudges the centred box — the overlay now anchors the left edge (center 0, 0.5) so the hairline meets the star. The info panel and not-found panel returned to top-4 at sm, under a search field that is 26rem wide and centred, covering the back button on every viewport from 640 to 1088px; they now wait for xl. The search empty state asserted "nothing matches" while the catalogues were still loading — and forever if they failed — so it now waits for the index. "Matches 8" was the page size wearing the costume of a count; the header now reports the real total, with the cap stated when it bites. The nameplate un-hides at lg instead of sm, clear of the rail and the object card. theme-color matches the void again. Accessibility. Tabbing to search changed one hairline's hue; the wrapper now carries the old ring as a visible focus indicator. Structure. hud-surface names the panel recipe that had been inlined at seven sites and had already forked into /85 and /92; the backdrop blur it carried is gone from every near-opaque panel — the canvas beneath redraws every frame, so each blur was re-sampled continuously for an effect the fill hid — and survives only as blur-sm on the genuinely translucent search shell. type-label and type-eyebrow name the two label voices, retiring 0.14em and the stray hover:bg-accent/10. The Measured/Derived rows both cards pasted twice each live once in ReadoutSectionsComponent; the reticle and chevron each draw from a single geometry, the reticle's stroke held in screen pixels so one mark serves every size. The acquire wipe plays once per search, not once per keystroke, because both outcomes now share one panel. hud-banner, which styled nothing since the rule was deleted, is a data-testid — the convention its own file already used. 527 unit tests, 6/6 end-to-end, production build, and a driven screenshot: every label now hangs off its star with the hairline touching the point. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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b14ce78c5f |
Say what formatRadiusKm actually returns
Its doc comment promised a fallback to Earth radii that the function has never had. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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7b0f32f71a |
Assemble a body's readouts once, not once per panel
Follow-up to review on #3. The card and the detail page each built their own Measured/Derived split, kind label and provenance sentence — the drift buildBodyViewModel exists to prevent, re-forked one layer up, and the drift would have been in which side of the measured/derived line a quantity falls on, which is the distinction those panels exist to draw. One bodyReadouts(body) now returns both blocks and the sentence, and both templates iterate it. The two surfaces render identical rows as a result, and the card gains the inclination the detail page already showed. Also from that review: - KIND_LABELS was duplicated between the two panels; it now lives beside bodyReadouts. The third copy the review pointed at is a different union (search results are star/body/exoplanet, and label a body "Body"), so it stays where it is. - CardRow was HudReadout renamed. Both are now Readout, which HudReadout extends with its derived flag. - The enterable-systems count was a 21-line lazy memo over arrays that are already in hand; it is one expression where those arrays are assigned. - buildBodyViewModel now carries hostStarId, so the detail scene stops rescanning both catalogues for something the builder had already resolved. - heliocentricPeriodDays was called twice for the same body. - The superscript helper was a split/map/join; it is a replace. - info-panel had five computed() each wrapping one pure call with a non-null assertion, beside a template that inlined the same kind of call directly. They are gone with the shared readouts. - Dropped a tautological test that compared a pure function to itself. Replaced with one that asserts the host star id the builder now carries. - Removed the orphaned doc comment left behind when formatParsecs/formatAu moved out. And one the review raised as out of scope but is worth taking: formatRadiusKm grouped thousands above its decimal threshold and not below it, so 69,911 km sat beside a bare 6371 km. Both are grouped now. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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1019727a39 |
Say what is known about a world, and how it is known
Four changes to the readout panel and the body cards, which between them were showing less than the catalogues hold and not always distinguishing a measurement from an inference. Picking a planet used to navigate straight to /body/:id. That tore down the system scene and the camera with it, so comparing two planets meant flying back into the system between each. Hovering a body now raises a card over the live view and clicking pins it; Full view still opens the route for the full 3D inspection. Clicking empty space unpins, and leaving the system clears it. The card and the detail page were assembling "what do we know about this world" independently, which is the shape of bug where a planet reads 255 K in one panel and 254 K in the other. Both now build from one shared view model. Orbital period was absent everywhere. For a heliocentric orbit it follows exactly from the semi-major axis, because in these units the Sun's mass is the unit of mass — Mars comes back 687.0 d against a published 686.98. It is deliberately not computed for moons, whose elements are relative to a parent planet the catalogue has no mass for, nor for exoplanets: periodDays is populated for none of the 6319 shipped records and hostStarMassSolar for none either, so any figure would assume a solar-mass host and mis-state every planet around an M dwarf. Where a period does exist it is filed under Measured or Derived according to which it is, not by its field name. The system readout showed a flat 0.00 pc for the Sun's distance, which is arithmetically right and reads as a bug — the distance from here to here is not a measurement, so it is suppressed. It gains the host star's luminosity, marked as derived, and counts moons separately from planets. The neighbourhood readout gains the one thing the star field cannot show: how many of those points can actually be entered. Derived readouts carry a marker and a footnote saying so. Every quantity now formats through one module whose precision follows magnitude, rather than a fixed decimal count per call site that read as false precision at one end and lost real information at the other: 0.0026 AU stays legible instead of rounding to 0.00, and Pluto's period reads 248 yr rather than 90560 d. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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748cb8927e |
Rebuild the map chrome against the Star Citizen starmap
Until now this was built from memory — the reference site is blocked by this environment's egress policy, so the resemblance was asserted rather than checked. Five screenshots of the real thing arrived, and this is what comparing against them changed. Labels say what a thing is, not just what it is called. Every label is now two lines: the name, then its type in smaller, wider-tracked, dimmer capitals. This is the single most characteristic element of the reference and it appears in every frame of it. It also settles a real ambiguity — in a map that mixes scales, "Orion" is an arm, a nebula and a constellation, and nothing about a bare name said which one a label pointed at. For stars the type line distinguishes "System" from "Star", which is the one thing it can say that the map could not otherwise show: which points are somewhere you can actually go. The system view had no body labels at all, where the reference labels every planet. It does now, which turned out to need two supporting changes. The overlay had only ever added and removed labels, never moved them, because stars do not move; planets do, so an existing label is now repositioned rather than left where the body used to be. And the inner four planets printed on top of each other in exactly the clump the star labels were already spread to avoid — so that logic is now shared rather than duplicated, with system bodies ordered outermost-first. Closing in reverses it by itself: the outer orbits leave the frame, their labels drop, and the inner planets take the space. The chrome follows the reference's layout. The scale ladder is a row of chamfered tabs at the top left rather than a vertical list of diamonds at the middle left, and a nameplate across the top centre says what the view is holding. The centre reticle is a hexagon, which is how the reference locks onto a body, and stays distinct from the rectangular panel chrome. Not copied: the ARK/RSI logos, wordmarks, and the bottom-right tool tabs. The first two are someone else's brand, and the third would be four tabs opening features this app does not have. Two e2e assertions moved off bare text matches onto the readout panel's own title. The nameplate names the same thing the panel does, so "is 'Local Stars' on screen" became ambiguous — the assertion, not the design, was what had to give. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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efa9e4084a |
Draw the whole catalogue, and build the aggregation the rest would need
Two things, one verified and one that cannot be. The render budget is now the whole catalogue: 68388 stars, one instanced draw call, which is what a GPU should be asked to do. The budget itself stays, because the catalogue is meant to grow past what any machine should draw at once — Gaia alone could contribute a million — and at that point the selection is what keeps the field legible rather than a grey wash. A `?stars=` override handles the machines that cannot, including the software rasterizer the end-to-end suite runs against, whose frame rate is two orders of magnitude below a real GPU's and which was measuring the rasterizer rather than the app. The aggregation is the second thing, and none of it has run. Every ESA, NOIRLab, SDSS and Euclid endpoint is unreachable from here — only GitHub raw is, which is why HYG and OpenNGC are the current sources. So this is infrastructure and a Gaia query written against the published DR3 schema, not data. What the framework encodes is that these surveys are not interchangeable. The distinction is not size but whether a catalogue knows how far away its objects are, because a 3D map cannot place a star it only has a direction for. Gaia is the only one of the five that can add stars here, because it is the only one that measures parallaxes. DECaPS2 has fifty times Gaia's object count and photometry alone — not one of its 3.32 billion objects can be placed in depth. Euclid's bulge is 8 kpc away, where a parallax is microarcseconds; its contribution would be imagery. SDSS-V and SAGA are keyed to stars something else already places, so they enrich rather than extend. Those roles are recorded as data the ETL prints, not as prose that can drift. Overlapping catalogues are reconciled on direction rather than on 3D proximity, which is the one non-obvious part. Two surveys agree on a star's direction to within an arcsecond and disagree on its distance by tens of per cent, so a star at 200 pc is 50 pc from itself between catalogues while being unmistakably the same object. Matching in 3D would need a tolerance so loose it swallowed real neighbours. The better parallax wins where both reach; where only one does, the star stays. Names become dense-with-holes with a source dictionary, because a survey catalogue has no proper names — writing "Gaia DR3 4472832130942575872" once per star would cost 25 MB per million to repeat what two adjacent fields already say. An empty entry costs three bytes and is regenerated on load. The Sun needed its own case in the merge: it sits at the origin, has no direction to compare, and appears in every catalogue. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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29fd92d118 |
Widen the star catalogue, and separate what is drawn from what is known
The map held 8750 stars within 50 pc and rendered 371 systems. Both were lower than they needed to be, for different reasons. The star catalogue was capped by its own encoding as much as by the cutoff: one JSON object per star, eight key names repeated each time, 157 bytes a star. At the range HYG actually reaches that is 17 MB to download and parse before the first frame. So the numbers move into two binary column stores — positions in stars.bin, which the GPU is handed verbatim, and id/magnitude/colour/spectral index in stars-meta.bin — and the JSON keeps only the strings, with 2600 distinct spectral classifications collapsed to a dictionary. The layout is defined once, in star-catalog.ts, and the ETL and the app both use it, so the writer and the reader cannot drift. The cutoff then goes to 250 pc: 68388 stars, 7.8x as many for 1.7x the bytes. That is where HYG's measurements stop rather than a round number — 98.6% of its rows are Hipparcos, whose parallaxes are good to about a milliarcsecond, so beyond 250 pc it would be plotting noise. Drawing all of them is a separate question from knowing them, and it is answered separately. The field draws a budget: every star inside 25 pc, because the nearest are faint red dwarfs and Proxima Centauri is magnitude 11, then the brightest of everything beyond. Search, navigation and the planet cross-reference still see the whole catalogue. A real GPU would draw all 68388 without noticing; the budget is for the machines that would not, and it is one constant. Systems were limited by something else entirely. The archive data already shipped named 4735 host stars and only 388 resolved, because the rest lay outside a 50 pc catalogue — and the cross-reference kept only its own result, so redoing it meant re-downloading an archive that is not reachable from here. Host coordinates are now stored with each planet, and the match is re-resolved at build time against whatever catalogue the run produced. Even name matching alone, which needs no coordinates and so works on the records already shipped, rescues 335 planets across 238 systems: 371 renderable systems become 609. Two selection rules were tuned for a 50 pc bubble and no longer fit. Tethers followed the Sun's nearest neighbours, which are a speck at this range, and now follow the brightest; labels were ranked by proximity, which named whatever sat nearest the middle of the screen, and are now ranked by brightness — so the view names Canopus, Achernar and Spica rather than a clump of catalogue designations. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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be19d9cbcc |
Keep the star visible at the distance that frames its system
Framing the whole system pushed the camera far enough back that the star at the centre became a speck — about a pixel across for the Sun. The cause is a constraint that cannot be tuned away. A star is sized against its system's innermost orbit, because it must never swallow its closest planet, while the camera is placed to frame the outermost ring. In the solar system those differ by a factor of a hundred: at the distance that fits Pluto in view, a disc that stays clear of Mercury is a pixel across. No radius satisfies both, because the information genuinely does not fit on one screen at that zoom. So the disc stays honest to the orbits and the halo carries the visibility. Light is not a surface: a glow that reaches past the innermost orbit says the star is bright, not that it is large. Its extent is still a multiple of the star — so a compact system keeps exactly the corona it had — but floored against the framed radius, which is what the wide systems needed. The disc grows a little too: it may now reach 45% of the innermost orbit rather than 35%, which still leaves clear space between the star's limb and the closest orbit. Also makes createGlowSprite take the extent it will draw rather than a radius and a multiplier. The two were only ever multiplied together, and how large a star's halo should be is not a property of the star — it depends on how its system is framed, which is a decision that belongs with the framing. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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ac296f5133 |
Derive a surface for every body that was never photographed
Fifteen bodies here have a real photograph. Every exoplanet does not, and never will on current instruments — none has ever been imaged — and nor do several of the solar system's own moons. Those all shared one crude stand-in: a few noisy bands tinted by category, cached per colour, so every exoplanet in the app was literally the same picture. They now get a surface reasoned from what has actually been measured. The chain is standard at every link. A host star's luminosity comes from its catalogued apparent magnitude and its parallax distance — that pair is exactly an absolute magnitude — plus a bolometric correction for its spectral class. The correction is not optional: an M dwarf radiates most of its light in the infrared, so its visual magnitude understates it more than tenfold, and M dwarfs are what most nearby planet hosts are. Luminosity and the semi-major axis then give an equilibrium temperature, mass and radius give a bulk density, and size, temperature and density together give a class of world. Checked against the solar system the temperatures land on Earth 255 K, Jupiter 112 K, Neptune 46 K, all within a kelvin or two of published values, and 51 Pegasi b comes out at 1227 K against a published 1200. Each class carries a palette reasoned from its chemistry — methane absorbs red light, which is why the ice giants are blue — and a structure: zonal bands for a body with a fluid envelope, because a rapidly rotating atmosphere organises into them, and fractal terrain for one with a solid surface. Polar caps grow and shrink with the derived temperature, which is the clearest visible consequence of the whole chain. The generator samples three-dimensional noise along the sphere rather than a flat field, so there is no seam to stitch at the antimeridian and no pinching at the poles, and it writes into a byte array rather than a canvas — a pure function, testable, with no 2D context to be unavailable. Two things the derivation cannot do, both stated on screen next to the measurements it rests on. Equilibrium temperature ignores greenhouse warming and internal heat, so Venus comes out at 300 K against a real surface of 737 K and Io, kept molten by tides, classifies as ice. And these are illustrations: reasoned, but not observations. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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2e525fb5c3 |
Open the map out to the whole Milky Way
The map stopped at the catalogued 50 pc around the Sun — 0.33% of the Galaxy's width — and looked like a point cloud with a search box. Adds the galactic scale above it and the heads-up display the reference map is built from. The Galaxy is not a third coordinate space. It is the same parsec space four orders of magnitude further out, so the model and the star field crossfade against camera distance instead of switching, and the Sun stays where it really is: 8.18 kpc out, on the Orion Spur, between the Sagittarius and Perseus arms. The depth range scales with that distance — one fixed near/far pair cannot both fly into a star and hold the Galaxy. The structure in shared/astro/galaxy.ts is measured: the directions of the centre and the north galactic pole, which fix the disc's 63 degree tilt against the celestial equator; the Sun's galactocentric distance; and a radius, azimuth and pitch angle per arm. The particles scattered around it are not, and cannot be — dust hides the disc, so no catalogue holds the Galaxy's stars. The view says so, and the model fades out before the camera reaches the 50 pc where the real stars are. The rest is the look: polar grids lying in the galactic plane with drop lines from the Sun's neighbours, a scale ladder, a readout panel, range, reticle and frame brackets. Two things had to give way for it. The deep-sky shell is the sky as seen from here, so it dissolves rather than letting the camera fly through a wall of nebulae, and so does the skybox, which is a photograph taken from inside the thing now being viewed from outside. Labels are picked by screen separation rather than distance alone: the Sun's fifteen nearest neighbours are all inside four parsecs and printed as one unreadable clump. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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2293585940 |
Put orbits and stars in the same reference frame
The app's two sources disagree about which frame they are in, and nothing reconciled them. HYG star positions are equatorial J2000 — that is what raDecDistanceToXyz produces and what the galaxy view renders directly. Orbital elements come from JPL Horizons, whose default reference plane for element output is the ecliptic, and the ETL never overrides it. The two are tilted 23.4 degrees apart, so the orbits sat that far off the sky they are drawn against. Confirmed rather than assumed, from both ends: the Horizons request in lib/horizons.ts sets no REF_PLANE, and the resulting solar-system inclinations are 0 to 17 degrees with Earth exactly 0.00 — which is only true of the ecliptic, since Earth's orbit defines it. eclipticToEquatorial now rotates orbit positions into the scene frame, so a direction means the same thing in the galaxy view and the system view. The rotation is about the vernal-equinox axis, which both frames share. That exposed a presentation problem the old code had been hiding. The renderer mapped the propagator's z straight onto the scene's vertical, which silently redefined the frame but did make systems render flat. In a properly equatorial scene, orbital planes lie 23.4 degrees off the scene's own axes, so a system would be presented edge-on. Rather than rotate the world back into a comfortable pose — which would only put the orbits at odds with the sky again — the camera now settles relative to the orbital plane: a three-quarter view about 37 degrees off the ecliptic normal. The arrival still begins along the approach direction and swings round as it settles, so the transition stays continuous, and the framing is now the same every time rather than inherited from wherever the camera happened to be. Tests: 247 passing, up from 237. The frame tests are the discriminating kind — Earth's orbit must lie perpendicular to the ecliptic pole rather than to the scene's vertical, and must reach 23.4 degrees of declination a quarter orbit on, where it used to read zero. Verified in a browser against Sol and Gl 357. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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f241b093eb |
Draw the 1509 exoplanets that were being silently dropped
The system renderer required both a semi-major axis and an eccentricity before it would place an exoplanet, even though resolveOrbitalElements already defaults every other missing element. The archive publishes an axis far more often than an eccentricity: 3895 records have one and only 2386 have both, so 1509 planets were dropped for want of a value that can simply be assumed. A missing eccentricity now defaults to 0, a circle. That is the conventional assumption for an orbit whose shape has not been constrained, and it is the only honest option available, since the axis alone says nothing about elongation. The effect is not subtle. 18 systems gain planets, and seven of them previously rendered as a bare star with nothing around it at all: Gl 357 goes from zero planets to three, HD 176986 likewise. Beyond the effect today, a user could already reach one of these planets through search and its detail page, then jump to its system and find it missing from the very system it belongs to. isPropagatableOrbit replaces the old inline guard and also rejects what the old one never checked: a non-positive axis, and an eccentricity of 1 or more. Those are escape trajectories that no ellipse describes, and propagating them anyway does not throw — it yields NaN, which reaches the vertex buffer and poisons the geometry's bounding sphere, disabling culling for the whole object rather than just the bad orbit. Being a type guard, it also lets the caller drop a seven-line field-by-field copy of the orbit. Fixes a label leak found while verifying this in the browser. Galaxy star labels were being cleared on entering system space but immediately recomputed, because the tick gated them on `currentStarId`, which is not assigned until the arrival flight finishes a second later — so parsec-scale names sat pinned over the system. Both label and orbit updates now gate on which group is actually visible, which is true throughout the transition rather than only at the end of it. Tests: 185 passing, up from 171. Verified in a real browser: GJ 1151 draws the orbit and marker it gained, and no labels survive into the system view. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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8d8c65bdb2 |
Propagate exoplanets with their real orbital period
Every exoplanet was propagated with gmForParent(undefined) — the Sun's gravitational parameter — so the whole catalogue orbited as though each host were exactly one solar mass. Most hosts are red dwarfs far lighter than that, and a heavier central mass pulls harder and shortens the period, so their planets were whirling round much too fast: TRAPPIST-1 is 0.09 solar masses, and its planets were completing an orbit in roughly a third of the true time. pl_orbper was already in the TAP query and was being discarded on the way into the record. It is now kept, along with st_mass. A period and a semi-major axis together pin the host's gravitational parameter exactly, via GM = n^2 a^3 — no stellar model, no assumption, just the inverse of the orbitalPeriodDays helper that was already there. resolveGravitationalParameter picks the best available source: the measured period, else the published host mass, else one solar mass as before. A derived value implying something outside 0.01-150 solar masses is rejected and falls through, since a period and axis taken from disagreeing solutions would otherwise send a planet spinning at a visibly absurd rate. Note the direction of the error, which is the opposite of what it looks like: assuming a *heavier* host than reality makes a planet orbit *faster*. A test pins it, and caught me stating it backwards first. The NASA Exoplanet Archive is unreachable from this environment (egress policy returns 403 on CONNECT), so exoplanets.json cannot be regenerated here and still carries no periods. Behaviour is therefore unchanged until `npm run etl` is run somewhere with archive access, at which point every planet with a published period starts moving correctly with no further code changes. build.ts reports how many records gained a period, and rejects non-positive ones. Tests: 171 passing, up from 151, including a new end-to-end check that TRAPPIST-1 b with its real period completes exactly one orbit in 1.51088 days and sits a full diameter away at half that. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Claude
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4aca223027 |
Regenerate the star catalogue, fixing 2331 names and 875 colours
Two ETL bugs, both fixed at the source and then re-run against HYG. Star ids,
ordering and positions are all unchanged, so stars.bin is byte-identical and
every exoplanet cross-reference still resolves.
Names. HYG's `gl` column already carries its own catalogue prefix ("Gl 581",
"GJ 3512"), unlike the bare numbers in `hd` and `hip`, so prefixing it again
produced 2331 of 8750 stars named "Gl GJ 1076". That corrupted three surfaces at
once: search, the on-screen labels, and exoplanet host-star name matching, which
compares normalised names and could never match "glgj1076" to "gj1076".
Colours. `Number(row['ci']) || 0` cannot tell a blank cell from a real zero, and
0 is a real B-V colour index meaning a hot blue-white A-type star. All 875
affected stars turned out to be blanks — the catalogue contains no genuine zero
inside the distance cutoff — so several hundred red dwarfs were rendering
blue-white. colorIndex is now `number | null` rather than defaulted, because any
numeric default is indistinguishable from a measurement.
Consumers resolve the gap from the spectral type instead. That needs real
parsing: HYG's `spect` column runs to 134 distinct spellings among the affected
stars alone, including a bare lowercase "m" for 354 of them, plus "k-m" ranges,
"dM4" luminosity prefixes and "K:" uncertainty flags. 622 of the 875 recover a
class this way — 497 of them M-class — and the remaining 253, which carry no
classification at all, fall back to neutral white.
The parse is anchored at the start of the string rather than scanning it. A scan
is the obvious implementation and is quietly wrong: the ETL writes the literal
"Unknown" for unclassified stars, that contains a K, and every one of those 253
would have been classified as an orange K-type. A test covers it.
Also lifts parseOptionalNumber out of fetchExoplanets into lib/csv, where both
fetchers now use it, and gives magnitude a faint default instead of 0 — no
current star is affected, but 0 would mean "as bright as Vega" and render an
unphotometered star as one of the largest points on the map.
Tests: 145 passing, up from 116, including the first coverage of
StarFieldRenderer. Build, both typechecks and the Playwright suite are green.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G
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Claude
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06cf7d2a15 |
Fix four defects a user hits in the first minute
Found by surveying the codebase against the plan; each was verified against the
committed assets or the running app before being touched.
TRAPPIST-1 was orbiting the Sun. The Exoplanet Archive leaves sy_dist blank for
some systems, and fetchExoplanets.ts read it with bare Number() — Number('') is
0, which is finite, so it slipped past the Number.isFinite guard in
resolveHostStarId, placed the host at the origin, and matched Sol at distance
exactly 0. 127 records shipped with hostStarId 0, all seven TRAPPIST-1 planets
among them, and the system view filters on that id, so drilling into Sol drew
127 alien worlds inside the real solar system.
Fixed in three places: resolveHostStarId now rejects a non-positive distance
(the robust guard, covering every caller), fetchExoplanets.ts uses the
parseOptionalNumber that already sat unused in that same file for ra/dec/dist,
and validateExoplanets asserts nothing ever resolves to the Sun again — the Sun
has no exoplanets, so that tripwire costs nothing and is permanent.
The archive's endpoint is blocked by this environment's egress policy, so the
ETL cannot be re-run here. The committed asset was corrected in place instead,
which is safe because the outcome is deterministic: the name path runs first and
none of the 127 resolve by name, so all of them reached id 0 positionally and
the fixed pipeline yields null for exactly that set. Cross-referenced hosts drop
from 761 to 634; record count is unchanged.
Dragging to rotate selected stars. Selection was bound to the raw click event,
which browsers fire on release however far the pointer travelled and which
OrbitControls does not suppress — so any drag ending over a star launched a
camera flight, and in system view routed away to /body/:id. Now tracks
pointerdown and ignores a release more than 5 px from it.
Ghost systems accumulated on every star-to-star hop. SystemOrbitsRenderer.dispose
released geometries and materials but never detached its group, so old orbit
lines stayed parented forever — still traversed and re-uploaded each frame with
disposed geometries, drawn over the new system and unpickable. dispose() now
detaches and clears.
Galaxy star labels stayed pinned inside the system view. They are CSS2D objects
parented to the scene rather than to galaxyGroup, so hiding the group left up to
15 parsec-space names clumped over the system's star. Cleared on entry. Also
gated the per-frame Kepler propagation on actually being in a system; it ran in
galaxy view too, because the renderer is never nulled on exit.
Tests: 116 passing, up from 112. Build, both typechecks and the Playwright suite
are green.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G
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Claude
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3a859360ba |
Add the deep-sky backdrop, the last unbuilt piece of the plan
The design doc scopes deep-sky objects as a galaxy-view backdrop and lists fetchDeepSky.ts, deepsky.json and deepsky.model.ts, but none of it existed — it was the only part of the plan with no implementation behind it. ETL: fetchDeepSky.ts pulls the OpenNGC catalog, classifies each object as a galaxy/nebula/cluster, and keeps the ~460 worth drawing (everything Messier, everything with a common name, and anything brighter than magnitude 9) out of ~12,000 mostly-anonymous rows. build.ts runs it and validates the output. Distances are the hard part: OpenNGC has no distance column, and both fallbacks fail for the best-known objects. M31, M33 and M42 are Local Group members whose redshift is negative or absent, and a galaxy's catalog parallax comes from a cross-matched foreground star — 6 mas for M31 would put a 780 kpc galaxy at 167 pc. So records store a unit direction on the celestial sphere rather than a position (the line of sight is always known precisely, and the objects are drawn on a fixed backdrop shell where true distance is unusable anyway), and distance is optional metadata carrying its own provenance. Parallax is trusted only for galactic objects, redshift only above z=0.003 where expansion outweighs peculiar velocity. 330 of 463 get a distance; the rest honestly report none. Rendering: DeepSkyRenderer paints the objects as soft additive billboards on a 2500 pc shell — clear of the 50 pc star field, beyond the camera's 2000 pc orbit limit, and inside its 5000 pc far plane. Size comes from real angular extent, so Andromeda is six times wider than the full Moon, clamped at both ends. Sprites rather than points because the WebGPU backend caps point primitives at one pixel; materials are shared per kind and brightness band, so 460 objects cost nine of them. The brightest dozen get permanent labels, which needed the label overlay to accept string ids alongside numeric star ids. The backdrop is decorative, so a failure to load its dataset is logged and the star field comes up regardless. Also documents the app in the README, which until now covered only the plugin marketplace. Tests: 112 passing, up from 54. Build, both typechecks and the Playwright suite are green. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01WaySiNst4HhDXBHnMy8p5G |
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Senrokai
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d7e8ea1d4d |
@
Add star-map Angular app, ETL pipeline, and caveman plugin Angular 3D star map (galaxy/system/body views, Three.js rendering, navigation store) plus the NASA ETL tooling that builds the star, exoplanet and solar-system datasets, Playwright e2e suite, and the cs:caveman Claude Code plugin (command, agent, skill). Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> @ |