Messier 21
| Use attributes for filter ! | |
| Distance to Earth | 4,240 light years |
|---|---|
| Apparent magnitude (V) | 6. 5 |
| Date of Reg. | |
| Date of Upd. | |
| ID | 2341456 |
About Messier 21
Messier 21 or M21, also designated NGC 6531, is an open cluster of stars in the constellation of Sagittarius. It was discovered and catalogued by Charles Messier on June 5, 1764. This cluster is relatively young and tightly packed.
Messier 21 Photos
