|Planetary Nebula NGC 6772 in Aquila
NGC 6772 is a small planetary nebula in Aquila. Like other planetary nebula, it represents the remnant of a dying star that is blowing off its outer
layers. It is dim (magnitude 12.7) and small (70 x 56"), requiring dark skies, a large aperture to collect scarce photons, steady skies, and precise
tracking. See my article on photographing planetary nebula in Sky & Telescope Magazine in October 2012.
This image combined 48 minutes of clear luminance, 20 minutes of red, 44 minutes green and 48 minutes of blue exposures, all unbinned. A
QSI-583wsg camera was used through a 12" Astro-physics Ricardi-Honders f/3.8 astrograph at the Hidden Lake Observatory.
Music: No Sunshine When She's Gone