NGC 7009 (PN G037.7-34.5) planetary nebula in Aquarius. Also known as the
"Saturn Nebula". Taken Aug 13, 2006 with DSI Pro II on a C8NGT 8" Newtonian
f5)operating at f7 (using a 1.4x teleconverter). All subframes were 40 sec
with the number of subframes L:R:G::B = 37:20:20:20. Captured with Envisage,
calibrated and sigma combined in Iris with other processing using PixInsight
and Photoshop CS. This is a crop and resample of a wider field image see:
http://www.pbase.com/jshuder/image/106234369/large