NGC 4450
| NGC 4450 | |
|---|---|
 NGC 4450 as taken from Mount Lemmon SkyCenter | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices[1] |
| Right ascension | 12h 28m 29.6s[2] |
| Declination | +17° 05′ 06″[2] |
| Redshift | 1954 ± 4 km/s[2] |
| Distance | ~50 million light-years |
| Apparent magnitude (V) | 10.9[2] |
| Characteristics | |
| Type | SA(s)ab[2] |
| Size | ~75,000 ly (diameter) |
| Apparent size (V) | 5.2′ × 3.9′[2] |
| Other designations | |
| UGC 7594,[2] PGC 41024[2] | |
NGC 4450 is a spiral galaxy in the constellation Coma Berenices.
Characteristics
[edit]NGC 4450 is a member of the Virgo Cluster that, like Messier 90, shows smooth, nearly featureless spiral arms,[3] with few star formation regions[4] and little neutral hydrogen compared to other similar spiral galaxies,[5] something that justifies its classification as an anemic galaxy.[4]
Measurements with the help of the Hubble Space Telescope show the center of this galaxy has a supermassive black hole.[6]
References
[edit]- ^ R. W. Sinnott, ed. (1988). The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer. Sky Publishing Corporation and Cambridge University Press. ISBN 978-0-933346-51-2.
- ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 4450. Retrieved 2007-04-01.
- ^ AN ATLAS OF THE UNIVERSE - THE VIRGO CLUSTER
- ^ a b Koopmann, R.; Kenney, J. D. P. (2004). "Hα Morphologies and Environmental Effects in Virgo Cluster Spiral Galaxies". The Astrophysical Journal. 613 (2): 866–885. arXiv:astro-ph/0406243. Bibcode:2004ApJ...613..866K. doi:10.1086/423191. S2CID 17519217.
- ^ Chung, A.; Van Gorkom, J.H.; Kenney, J.F.P.; Crowl, Hugh; Vollmer, B. (2009). "VLA Imaging of Virgo Spirals in Atomic Gas (VIVA). I. The Atlas and the H I Properties". The Astronomical Journal. 138 (6): 1741–1816. Bibcode:2009AJ....138.1741C. doi:10.1088/0004-6256/138/6/1741.
- ^ Swirling Gas Disk around Black Hole in Galaxy NGC 4450
External links
[edit]Media related to NGC 4450 at Wikimedia Commons
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