Caldwell 21
Galaxy in Canes Venatici · 12 million light-years
🔭 Explore Caldwell 21 in the 3D map →| Type | Galaxy |
|---|---|
| Constellation | Canes Venatici |
| Distance | 12 million light-years |
| Apparent magnitude | 9.6 |
| Apparent size | 4.7′ (arc-minutes) |
| Also known as | C21 · NGC 4449 |
Caldwell 21 is a galaxy (NGC 4449) in the constellation Canes Venatici — a distant island of stars far beyond the Milky Way. It appears as number 21 in the Caldwell catalogue, Sir Patrick Moore's 1995 list of 109 bright deep-sky objects for amateur astronomers. It spans roughly 4.7 arc-minutes on the sky. At about magnitude 9.6, it shows up in a small backyard telescope.
See Caldwell 21 in Universe Finder
Open the interactive 3D map to fly to Caldwell 21 and see it in context among the real stars around it. Launch the 3D view →
Related objects
- Andromeda Galaxy — galaxy
- Triangulum Galaxy — galaxy
- Whirlpool Galaxy — galaxy
- Sombrero Galaxy — galaxy
- Messier 110 — galaxy