"The Bubble Nebula" in Cassiopeia
NGC 7635

NGC7635 The Bubble Nebula

Image Details (Click on Image for Higher Resolution Image):

Telescope: Takahashi TOA-130 @ F7.68 (999mm) w/Field Flattener
Wikipedia Notes: NGC 7635, also called the Bubble Nebula and Sharpless 162, is a H II region[2] emission nebula in the constellation Cassiopeia. 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[2]magnitude young central star, the 15 ± 5 M☉[4]SAO 20575 (BD+60 2522).[7] 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.[7] It was discovered in 1787 by Friedrich Wilhelm Herschel.[6] The star SAO 20575 or BD+602522 is thought to have a mass of 10-40 Solar masses.
Mount: Astro-Physics 900GTO
Camera: SBIG ST-2000XM with Custom Scientific Filters
Exposure: LRGB = 300:60:60:60 Minutes (RGB Binned 2x2)
Location: ARGO, Oregon USA
Date: August 2005