feat(famous): add LEDA 1313424 (the Bullseye galaxy)#378
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Seed entry for the nine-ring "Bullseye" galaxy (LEDA/PGC 1313424) in Pisces, the subject of the Feb 2025 Hubble release (opo2506) and of Sikivie & Zhao 2026 (ApJ 1004, 87), which reinterprets the rings as caustic dark-matter shells rather than a collisional wake. It appears in no survey catalog the pipeline reads (absent from both GLADE v2.3 and GLADE+ v2.4 — its redshift was only measured in the 2024-25 campaign, after both catalogs were compiled), so the famous layer is the only path to render it. Field values follow the standard famous-seed convention, derived from HyperLEDA via the pipeline's own formulas: - distanceMpc 163.7 (v3k/70; no usable mod0) - diameterKpc 29.4 (from logd25; the d25 isophote, not the full ring span) - axisRatio 0.813 (10^-logr25), PA 33.0 - magB 16.68, magK 12.56 RA/Dec cross-confirmed against SIMBAD and ESA Hubble opo2506. Image curation (Hubble opo2506; credit NASA, ESA, I. Pasha, P. van Dokkum), build-famous, and the R2 sync are the maintainer-local handoff steps. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Q4A8sjjJNeiG9g8bvj5Ngm
The seed and curated-override files live under data/seeds/ (per tools/utils/io/rawDataRegistry.ts), but the skill doc still pointed at data/famous_galaxies.seed.json / data/famous_curated_overrides.json — including the copy-paste git-add block, which would have staged nothing. Updated all four command/path references to data/seeds/. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01Q4A8sjjJNeiG9g8bvj5Ngm
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Summary
Adds LEDA 1313424 — the "Bullseye" galaxy to the famous layer: the nine-ring low-surface-brightness disc galaxy in Pisces from the Feb 2025 Hubble release (opo2506), subject of Pasha & van Dokkum 2025 (ApJL, discovery) and Sikivie & Zhao 2026 (ApJ 1004, 87, the caustic dark-matter ring reinterpretation).
It appears in no survey catalog the pipeline reads — verified absent from both GLADE v2.3 (VizieR VII/281) and GLADE+ v2.4 (VII/291), and from the shipped
glade-*.bin/2mrs.binon R2. Its redshift was only measured in the 2024–25 campaign, after both GLADE generations were compiled, so the famous layer is the only path to render it.Changes
data/seeds/famous_galaxies.seed.json— new seed entryleda1313424, canonical field order, values derived from HyperLEDA via the pipeline's own formulas:ra/decdistanceMpcv3k/70; no usablemod0)diameterKpclogd25, the d25 isophote)axisRatio/PAmagB/magKbt/kttype.claude/skills/add-famous/SKILL.md— corrected the seed/override file paths fromdata/…todata/seeds/…(matchingrawDataRegistry.ts), including thegit addblock that would otherwise have staged nothing.Note on
diameterKpcFollows the catalog convention (the
d25isophote → ~29 kpc) so billboard scaling stays consistent with every other entry. This is smaller than the full nine-ring span behind the "2.5× the Milky Way" figure (~80 kpc); bumpdiameterKpcto ~80 if the billboard should match the visible ring system instead.Remaining maintainer-local steps (can't run in the remote sandbox)
The scriptable front of
/add-famousis done; the rest needs the local machine (StarNet weights, curator UI, Cloudflare secrets):npm run curate-famous— curate the Hubble opo2506 image (credit: NASA, ESA, I. Pasha (Yale), P. van Dokkum (Yale); CC BY 4.0). The curator writesfamous-curated/leda1313424/+ the attribution override itself — which is why this PR deliberately does not pre-writefamous_curated_overrides.json(that would claim tiles that don't exist yet).npm run build-famous— regeneratefamous.bin+famous_meta.json.build-tiersdedup — verified LEDA 1313424 is in no survey bin, so there's nothing to dedup (like the LMC case).npm run sync-r2-secure— uploadfamous.bin,famous_meta.json, and the hi-res tile to R2.🤖 Generated with Claude Code
Generated by Claude Code