M13 - The Great Globular Cluster in Hercules
Fri May 05 2023
Messier 13, the Great Globular Cluster in Hercules, is one of the finest globular clusters in the northern sky, a tight swarm of hundreds of thousands of ancient stars about 25,000 light-years away. These clusters are among the oldest structures in our galaxy, and M13 is bright enough to spot with binoculars on a clear night.
About this object
- Type
- Globular Cluster
- Constellation
- Hercules (the Hero)
- Distance
- ~22,000 light-years
- Apparent magnitude
- 5.8
- Apparent size
- 16.5′
- Also known as
- Hercules Globular Cluster
- Catalogue designations
- M 13, NGC 6205
Acquisition
- Antlia V-Pro Red 31 mm: 194 × 30s (1h 37m)
- Antlia V-Pro Green 31 mm: 172 × 30s (1h 26m)
- Antlia V-Pro Blue 31 mm: 111 × 30s (55m 30s)
- Total integration: 3h 58m 30s
Equipment
- Telescope / Lens: Celestron C8
- Camera: ZWO ASI1600MM Pro
- Mount: Celestron CGEM II
- Filters: Antlia V-Pro Blue 31 mm, Antlia V-Pro Green 31 mm, Antlia V-Pro Red 31 mm
- Guiding scope: SVBony SV106 60mm Guide Scope
- Guiding camera: ZWO ASI224MC
- Accessories: Celestron 0.63X SCT Reducer (94175), ZWO EFW 8 x 1.25″ / 31mm
- Software: Pleiades Astrophoto PixInsight
Astrophotography by David Joyce, AstroDavido.