This is the Helix Nebula, NGC7293, a large planetary nebula located in the constellation Aquarius. It is about 700 light-years away, spanning about 2.5 light-years.
The image uses RGB data, with additional Ha data to enhance the luminance channel, taken with the Astro-Physics 175 Starfire Refractor from the Deep Sky West Observatory.
|Exposure:||H 13 x 1800sec, RGB (15,12,15) x 900sec||Date:||2017-10-06…2017-10-15|
|Setup:||Astro-Physics 175 Starfire with FLI PL16070||Site:||Deep Sky West Observatory, NM, USA|