M31, Andromeda Galaxy
Exposure time: 3 hours, 20 minutes (5 min. subs) | Optics: Takahashi Epsilon-180ED f/2.8 | Camera: Baader modified Canon 5D Mark II (ISO 1600) | Mount: Astro-Physics Mach1 GTO | SQM: 20.8 magnitude/arcsec² | Location: Wateren, Netherlands | Date: October 25, 2014