Each channel imported using Fits Liberator plug-in
Curves and Levels adjusted to each channel
Red, Green and Blue channels RGB merged
Luminance data added as a luminance layer - took the simple route this time.
More curves and levels adjustments to taste
Added diffraction spikes via Noel Carbonni's actions
Description: NGC 7635 - The Bubble Nebula
NGC 7635 (also known as the Bubble Nebula) in the constellation Cassiopeia is a H II region, emission nebula. It lies close to the direction of the open cluster Messier 52. The "bubble" is created by the stellar wind from a massive hot, 8.7 magnitude young central star, SAO 20575 (BD+60 2522). The nebula is near a giant molecular cloud which contains the expansion of the bubble nebula while itself being excited by the hot central star, causing it to glow.