M31 — Andromeda and Friends
The Andromeda Galaxy and its entourage — M32 tucked against the disk and M110 floating below. At 2.5 million light-years it's the nearest major galaxy to our own, on course to merge with the Milky Way in about four billion years. This one is a speed run: just one hour total, built from hundreds of 15-second RGB subs — a demonstration of how far fast optics and a modern CMOS sensor can get on a bright target.
- Coordinates: RA 00h 42m 44s, Dec +41° 16′ 09″ (Andromeda)
- Optics: William Optics SpaceCat 61
- Camera: ZWO ASI2600MM Pro
- Mount: Sky-Watcher Wave 150i
- Filters: Baader R/G/B (CCD), 36 mm
- Integration: 1h — R 20m (80 × 15″), G 20m (80 × 15″), B 20m (80 × 15″)
- Published: 2025-08-02 — on AstroBin