NGC 7635 - Bubble Nebula
The Bubble Nebula is an emission nebula created by the stellar wind of a massive O-type star blowing a bubble in surrounding gas.
Distance: 7,100 light-years
Apparent Magnitude: 10.00
Apparent Size: 15' × 8'
Constellation: Cassiopeia
Object Type: Emission Nebula (Wolf-Rayet bubble)
Key Features:
- Bubble shape from stellar wind
- Central star BD+60°2522
- Expanding at 4 million mph
- Shock-heated gas
- Near M52 cluster
Best Imaging Season: August - November
Optimal Integration: 15+ hours
