NGC 2281
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| AladinLite | |
| Constellation | Carter |
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Position equinox : J2000.0 |
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| Right ascension | 06 h 48 m 17.8 s |
| declination | + 41 ° 04 ′ 44 ″ |
| Appearance
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| classification | I3p |
| Brightness (visual) | 5.4 likes |
| Angular expansion | 25.0 ' |
| Number of stars | approx. 30 |
| Physical data
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| Affiliation | Milky Way |
| Redshift | 0.000070 |
| Radial velocity | 21.00 km / s |
| distance | 1800 ly (558 pc ) |
| Absolute brightness | 5.4 likes |
| Metallicity [Fe / H] | +0.13 |
| history | |
| Discovered by | William Herschel |
| Discovery time | March 4, 1788 |
| Catalog names | |
| NGC 2281 • C 0645 + 411 • OCl 446 • Mel 51 • Cr 116 • Lund 259 • GC 1451 • H VIII 71 • | |
NGC 2281 is a galactic open star cluster of the Trumpler-type I3p in the constellation Fuhrmann in the northern sky . It has an angular dimension of 25.0 ′ × 25.0 ′ and an apparent magnitude of 5.4 mag. The cluster is about 1,800 light years away and contains around 30 stars . At 300 million years old, the cluster has made one and a half orbits around the center of the Milky Way and is expected to completely disintegrate during the upcoming galactic orbit.
The object was on March 4, 1788 by Wilhelm Herschel .
Web links
- Amateur recordings. Spektrum.de