Caldwell 81
Star cluster in Ara · 22,000 light-years
🔭 Explore Caldwell 81 in the 3D map →| Type | Star cluster |
|---|---|
| Constellation | Ara |
| Distance | 22,000 light-years |
| Apparent magnitude | 8.9 |
| Apparent size | 7.2′ (arc-minutes) |
| Also known as | C81 · NGC 6352 |
Caldwell 81 is a star cluster (NGC 6352) in Ara — a family of stars bound by gravity. It appears as number 81 in the Caldwell catalogue, Sir Patrick Moore's 1995 list of 109 bright deep-sky objects for amateur astronomers. It spans roughly 7.2 arc-minutes on the sky. At about magnitude 8.9, it shows up in a small backyard telescope.
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Related objects
- Pleiades — star cluster
- Hercules Cluster — star cluster
- Small Sgr Star Cloud — star cluster
- Messier 25 — star cluster
- Messier 103 — star cluster