Bubble Nebula

Designation:
NGC 7635
Date:
October 15th, 2018
Camera:
Canon EOS 7D Mark II ( unmodified )
Optics:
Sky-Watcher ED120mm Doublet
Focal Length:
900 mm
Exposure:
54 x 300 sec.
ISO:
1600
Mount:
Sky-Watcher NEQ6 Pro
Guiding:
Orion Star Shoot Auto Guider
Software:
Adobe Photoshop, DSS, Astroflat
Notes:
The Bubble Nebula is a emission nebula in the constellation Cassiopeia. 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