M13 — Hercules Globular Cluster
Bright northern globular cluster; rich star field with a dense core.
Capture details
- Date: 2025-11-03
- Integration: 25 × 8s
- Gear: Askar 80ED • Canon 550D
- Location: Goldach
- Notes: Tight core, good star colours
Processing
Star colour calibration, gentle core stretching to avoid clipping.
What is M13 (Hercules Globular Cluster)?
M13 is a dense globular cluster of several hundred thousand ancient stars, orbiting the Milky Way’s halo about 22,000 light-years away in Hercules. It’s among the brightest globulars in the northern sky.
- Type: Globular star cluster
- Distance: ~22,000 ly
- Why it’s popular: Rich star field, great for color balance and resolving the core