Blown by the wind from a massive star, this interstellar apparition has a surprisingly familiar shape. Cataloged as NGC 7635, it is also known simply as The Bubble Nebula. Although it looks delicate, the 7 light-year diameter bubble offers evidence of violent processes at work. Above and right of the Bubble’s center is a hot, O-type star, several hundred thousand times more luminous and some 45 times more massive than the Sun. A fierce stellar wind and intense radiation from that star have blasted out the structure of glowing gas against denser material in a surrounding molecular cloud. The intriguing Bubble Nebula and associated cloud complex lie a mere 7,100 light-years away towards the constellation Cassiopeia.

Image Credit: Credit: Prabhu S Kutti (Via BAS)

Image Details:

Date:12.09.2021 & 13.09.2021, Location: Buraq. UAE(Bortle:5), S2 - 5 minutes x 18 Ha - 5 minutes x 28 O3 - 5 minutes x 19, Total integration time: 5.4 hours only at f5.3 Flats, darks 2x2 bin, Sensor temp: -5° Equipment: GSO 8" RC - TSCCD67 reducer - ZWO 294MM Pro Camera - Antlia 3nm SHO filters, 7 Position 36mm filter wheel - AZEQ6 Mount (ZWO OAG with ZWO224MC cam for guiding), Processing software: Pixinsight(Stacking, SHO Combination, DBE, MSLT, HT, pixel math, CC, CurvesT, SCNR, Deconvolution, LHE, MorphologicalT.