NGC 7635

NGC 7635, or the Bubble Nebula, is an 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 young central star. It was discovered in 1787 by William Herschel.

NGC 7635, Bubble Nebula

Image details:
Telescope: TS 90/600 triplet with 2.5" TS flattener
Mount: Skywatcher HEQ5-Synscan
Camera: Atik one 6.0
Exposure: 20 * 600sec Baader Ha filter
Software: PixInsight, PHD
Calibrationfiles: Dark:No, Bias:Yes (masterbias), Flat:Yes

(c) All photos by Ruud de Vries