M15 - Globular Cluster
M15 is one of the densest globular clusters known, with a collapsed core that may contain a black hole. It's also one of the oldest clusters in the Milky Way.
Distance: 33,600 light-years
Apparent Magnitude: 6.20
Apparent Size: 18'
Constellation: Pegasus
Object Type: Globular Cluster (Class IV)
Key Features:
- Collapsed core (one of few known)
- Possible intermediate-mass black hole
- Age: 12 billion years
- 112 variable stars
- Contains planetary nebula Pease 1
Best Imaging Season: July - November
Optimal Integration: 4+ hours
