Drop the "..." Hipparcos leaves on a spectral type, which read as the app cutting it short

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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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This commit is contained in:

Senrokai

2026-09-24 23:44:41 +02:00

co-authored by Claude Opus 5.5

parent 5333be615e

commit 70cbdae306

4 changed files with 16 additions and 2 deletions

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src/assets/data/stars-index.json

+1 -1

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src/assets/data/stars-meta.bin

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