Describe a folded Gliese star by its own row where SIMBAD puts the HYG star already there elsewhere

e7c420b folded a Gliese-only row into a Gaia entry a HYG star already described whenever the two V
agreed within 0.5, and kept that HYG star's description. HYG hangs "Gl 905.2A", M5, V 13.11,
B-V 1.55 on HIP 117059, which SIMBAD names as LAWD 93: Gl 905.2B, a DA white dwarf, Gaia DR3
2871730307948650368. Gl 905.2A is G 130-6, another source 3' away with no parallax. So the fold
dropped the white dwarf's own row (DA4, V 12.90, B-V 0.15) and drew its source as a 3 384 K M5
dwarf of 0.292 solar radii.

foldByIdentity now looks up the SIMBAD designation of the HYG star describing the target. Where it
names another source, the Gliese row is the star on this one, and its description, photometry
included, replaces that one (combine takes the described entry as an argument). Five of the 63
folds are of this kind; decoded from the published catalogue, before -> after:

- Gl 905.2A [116690] M5 V 13.11, 3 384 K, 0.292 R -> Gl 905.2B [119589] DA4 V 12.90, 8 175 K, 0.022 R
- GJ 9490A [71678] M0 -> GJ 9490C [118981] K5, the type SIMBAD gives BD+20 3009 (same V and B-V)
- HD 40887 [28371] V 7.85 -> Gl 225.2C [118408] V 8.30, on the source SIMBAD names GJ 225.2 C
- Tau Oph [88131] F5V+ V 4.77 (the pair's light) -> Tau Oph [119195] dF3 V 5.24, GJ 700.1 A's
- HD 65277 [38820] "Gl 293.1B" -> HD 65277 [118511] Gl 293.1A, V 8.06, on GJ 293.1 A's source

Nothing else changes: 455 519 stars, 63 folds, 0 Gliese rows beside their source, no planet
hosted on any of the five ids. The HD 40887 name leaves the map, SIMBAD putting HD 40887 AB on
the source HYG labels Gl 225.2B.

The tolerance's doc said the ten such pairs agree within 0.12. There are 14; 11 do, and the three
that differ by 0.21, 0.45 and 0.47 are three of these five.

Guarded mutants, each failing only "describes the entry by the Gliese row where SIMBAD names the
HYG star already there as another source" (1 of 834): the condition never true; the condition
inverted to describer === designation.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

This commit is contained in:

Senrokai

2026-09-30 21:18:13 +02:00

co-authored by

Claude Opus 5.5

parent e7c420b296

commit 5620776601

5 changed files with 38 additions and 6 deletions

src/assets/data/stars-index.json

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