NGC 7039
| AladinLite | |
| Constellation | swan |
|
Position equinox : J2000.0 |
|
|---|---|
| Right ascension | 21 h 10 m 45.7 s |
| declination | + 45 ° 37 ′ 19 ″ |
| Appearance
|
|
| classification | III2p |
| Brightness (visual) | 7.6 likes |
| Angular expansion | 15.0 ' |
| Physical data
|
|
| Affiliation | Milky Way |
| Redshift | −0.000037 |
| Radial velocity | −11.00 km / s |
| distance | 3100 ly (950 pc ) |
| history | |
| Discovered by | John Herschel |
| Discovery time | September 19, 1829 |
| Catalog names | |
| NGC 7039 • C 2109 + 454 • OCl 203 • Cr 431 • GC 4645 • h 21ß7 • | |
NGC 7039 is an open cluster of Trumpler type III2p in the constellation Swan at the northern sky . It has a brightness of 7.6 mag and an angular diameter of 15 arc minutes.
The object was discovered on September 19, 1829 by John Herschel .