M52 and Bubble Nebula, NGC 7635

2016-09-25 / Image Details (Click on image to enlarge)

NGC 7635, also called the Bubble Nebula, is an H II region emission nebula in the constellation Cassiopeia. It lies close by the open cluster Messier 52. It was nicknamed the Bubble Nebula because of its shape, which was created by a strong stellar wind from a young, massive, hot star that shed its material to form the nebula.

M52 is one of Charles Messier's original discoveries, who cataloged it on September 7, 1774. He noticed it after a comet he was observing passed close by.

"The perfect shape of the bubble is astonishing. What an extraordinary apparition! "

Technical Details

LocationZollikerberg, Switzerland
CameraNikon DSLR D810A
TelescopeSkywatcher Quattro 8CF 200 DS Fibre OTA Newton Carbon
Special LenseSkywatcher Newtonian F4 Coma Corrector
MountSkywatcher AZ-EQ6, EQASCOM, Stellarium
AutoguidingLacerta MGEN2 (Autoguiding, Dithering und Camera Control)
Camera ControlDigicamcontrol (Focus, Camera Control)
Lights52 x 120s (1h44'), ISO-1250, additional Biases, Flats, no Darks
Stacking SoftwarePixinsight 1.8
Image ProcessingPixinsight 1.8