M5 - Globular Cluster
M5 is one of the oldest globular clusters known, with an estimated age of 10.5 billion years. It's also one of the largest globulars, spanning 165 light-years in diameter.
Distance: 24,500 light-years
Apparent Magnitude: 5.65
Apparent Size: 23'
Constellation: Serpens Caput
Object Type: Globular Cluster (Class V)
Key Features:
- One of oldest known clusters (10.5 billion years)
- 165 light-years diameter
- ~100,000 stars
- 105 variable stars
- Large apparent size
Best Imaging Season: April - July
Optimal Integration: 3+ hours
