Exposures: L 13×300 Bin 1, RGB 13×150 Bin 2 Telescope: 10″ RC Camera: QSI 683 Mount: AP900 Distance: 2,300 Light Years Magnitude: 8.8 Size: 1.4 x 1 Arc-minutes Age: 6,000-8,000 Years Messier 57 is a small Planetary nebula in the constellation Lyra. Although it is very small the outer rings show brightly in short exposures. […]