🐛 Critical Fix
Fixed incomplete sky coverage in v2.0. Previous version only covered Dec=-5° to +7° (primarily Orion region), causing plate solving to fail for most of the sky including popular targets like Pleiades, Andromeda, etc.
✨ What's Fixed
- Full sky coverage: Dec=-78° to +78° (was -5° to +7°)
- Pleiades now solvable: 17 triangle patterns in M45 region (was 0)
- Smart star distribution: Stars selected evenly across 288 sky regions (24 RA × 12 Dec grid)
- Better matching: Triangles now cover entire visible sky from both hemispheres
📊 Technical Details
- Stars: 500,000 (unchanged)
- Triangles: 106,285 (down from 1.4M, but evenly distributed!)
- Algorithm: Sky grid-based star selection instead of brightness-only
- Coverage: All constellations now included
🔄 How to Update
- Open AstroStack app
- Go to Settings → Offline Catalog
- App will auto-detect v2.1 and prompt to update
- Download (~17 MB)
⚠️ Important
All v2.0 users should update to v2.1 - v2.0 had severely limited sky coverage and would fail on most images outside the Orion region.
📦 Files Included
- star_catalog_v2.db.zip - 17 MB - Main catalog with full sky coverage
- messier_complete.json - 15 KB
- ngc_complete.json - 1 MB
- ic_complete.json - 706 KB
- bright_stars_complete.json - 357 KB
- version.txt - Version identifier (2.1)