The Ring Nebula (also catalogued as Messier57, M57 or NGC 6720) is a planetary nebula in the northern constellation of Lyra.
Such objects are formed when a shell of ionized gas is expelled into the surrounding interstellar medium by a red giant star, which was passing through the last stage in its evolution before becoming a white dwarf. (Wikipedia)
Rightascension 18h 53m 35.079s
Declination +33° 01′ 45.03'
Distance 2.3+1.5−0.7 kly (700+450−200 pc ly
Apparent magnitude (V)8.8
Apparent dimensions (V)230″ × 230″
SCOPE: Dob 10px Sky- Watcher F.L.1200/f4.7
EYEPIECES: Excplore Scientific 4.7mm F.O.V. 82°
DAY: Sunday DATE: 8/8/15 TIME: 00:10
OBSERVER: Marios S. Ioannou