NGC 4450 explained
| NGC 4450 |
| Epoch: | J2000 |
| Type: | SA(s)ab[1] |
| Dist Ly: | ~50 million light-years |
| Z: | 1954 ± 4 km/s |
| Appmag V: | 10.9 |
| Size V: | 5.2 × 3.9 |
| Size: | ~75,000 ly (diameter) |
| Constellation Name: | Coma Berenices[2] |
| Names: | UGC 7594, PGC 41024 |
NGC 4450 is a spiral galaxy in the constellation Coma Berenices.
Characteristics
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]
Notes and References
- Web site: NASA/IPAC Extragalactic Database . Results for NGC 4450 . 2007-04-01.
- Book: R. W. Sinnott . The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer . 1988 . Sky Publishing Corporation and Cambridge University Press . 978-0-933346-51-2.
- http://www.atlasoftheuniverse.com/galgrps/vir.html AN ATLAS OF THE UNIVERSE - THE VIRGO CLUSTER
- Koopmann. R.. Kenney. J. D. P.. 2004. Hα Morphologies and Environmental Effects in Virgo Cluster Spiral Galaxies. The Astrophysical Journal. 613. 2. 866–885. 2004ApJ...613..866K. 10.1086/423191. astro-ph/0406243 . 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 . 2009AJ....138.1741C . 10.1088/0004-6256/138/6/1741. free .
- http://www.spacetelescope.org/images/heic0002a/ Swirling Gas Disk around Black Hole in Galaxy NGC 4450
