M57 (NGC 6720) Ring nebula
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Type Location r.a. dec. Size Magnitude Distance
Planetary Nebula Lyra 18h53.6 33°02' 1.2' 8.8 2.3 Kly

The Ring Nebula (also catalogued as Messier 57, M57 or NGC 6720) is a planetary nebula in the constellation of Lyra, at a distance of about 2,300 light-years.

Full frame image:

M57, the Ring nebula

M57 detail, the central star magnitude is 15.8:

M57 detail

More from Wikipedia

Date Telescope Binning Exp Time (s) Special processing Notes
July 13, 2002 Centurion
18"		 L 1:1
RGB 2:1		 L 4x300
R,G,B 300		 Virtual pixel, LRGB, Max Entropy, DDP detailed image sampling: .7"/pixel