NGC 7635 Bubble Nebula
NGC 7635 Bubble Nebula
Object: NGC 7635 Bubble Nebula in Cassiopeia
Equipment: Astro-Tech 10" f/8 RC on Asto-Physics 1200GTO; SBIG ST-10XME, Astrodon filters; Astro-Physics 80X900 guidescope.
Exposure/Processing: RGB - 8 to 10 x 180s; Luminance - 10 x 180s; Hydrogen alpha as luminance 3x300s; Expose/process in Maxim / Photoshop.
Location/Date: 08-09 October 2010; Chiefland Astronomy Village

Comment:NGC 7635, also called the Bubble Nebula and Sharpless 162, is a H II region 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 magnitude young central star. 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. It was discovered in 1787 by Friedrich Wilhelm Herschel. (Entry abstracted from Wikipedia website)