NGC 5634
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Globular cluster NGC 5634 |
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| Photo from the Hubble Space Telescope | |
| AladinLite | |
| Constellation | Virgin |
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Position equinox : J2000.0 , epoch : J2000.0 |
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| Right ascension | 14 h 29 m 37.3 s |
| declination | -05 ° 55 ′ 35 ″ |
| Appearance | |
| Concentration class | IV |
| Brightness (visual) | 9.5 likes |
| Angular expansion | 5 ′, 5 |
| Physical data | |
| distance | about 88,700 light years (about 27,200 pc ) |
| history | |
| discovery | William Herschel |
| Discovery date | March 5, 1785 |
| Catalog names | |
| NGC 5634 • C 1427-057 • GCl 28 • GC 3900 • Bennett 66, HI 70, h 1813 | |
NGC 5634 is the name of a globular cluster in the constellation Virgo . NGC 5634 has a brightness of about 9.5 mag and an angular diameter of 5.5 arc minutes . The distance is approximately 27 kiloparsecs.
Due to the similarity of the orbit, a connection between the cluster and the Sagittarius dwarf galaxy is suspected. According to this, the cluster would have belonged to the dwarf galaxy before it was torn apart by the gravitation of the Milky Way.
The object was bought on March 5, 1785 by William Herschel .
literature
- Walter Baade : The Globular Clusters NGC 5634 and NGC 6229. In: Astrophysical Journal , Vol. 102, pp. 17-25, bibcode : 1945ApJ ... 102 ... 17B
- Michele Bellazzini, Francesco R. Ferraro, Rodrigo Ibata: The Stellar Population of NGC 5634: A Globular Cluster in the Sagittarius dSph Stream? In: The Astronomical Journal , Vol. 124, No. 2, pp. 915-923, doi : 10.1086 / 341755 , bibcode : 2002AJ .... 124..915B
Individual evidence
- ↑ NASA / IPAC EXTRAGALACTIC DATABASE
- ↑ Harlow Shapley, Helen B. Sawyer: A Classification of Globular Clusters . In: Harvard College Observatory Bulletin . tape 849 , 1927, pp. 11-14 , bibcode : 1927BHarO.849 ... 11S .
- ↑ a b SEDS : NGC 5634
- ↑ a b Bellazzini et al .: The Stellar Population of NGC 5634. In: The Astronomical Journal , Vol. 124, No. 2, p. 915
- ↑ Seligman