NGC 7293 - Helix Nebula
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Type Location r.a. dec. Size Magnitude Distance
Planetary nebula Aqr 22h29.6 -20°48' 15' 13.5 700  ly

The Helix Nebula, also known as The Helix, NGC 7293, is a large planetary nebula located in the constellation Aquarius at an estimated distance of 700 light-years.
This is one of the largest planetary nebula: With 15' diameter, the apparent size is about 1/2 the full moon.

 

More from Wikipedia

Date Telescope Binning Exp Time (s) Special processing Notes
Aug 19, 2003
Aug 30, 2005
Centurion
18"
L 1:1
RGB 3:1
L 6x300
R,G,B 2x300
LRGB, DDP New images acquired Aug 30, 2005 and combined with the original images from 2003