NGC 4450

NGC 4450 is a spiral galaxy in the constellation Coma Berenices.

NGC 4450
NGC 4450 as taken from Mount Lemmon SkyCenter
Observation data (J2000 epoch)
Constellation	Coma Berenices[1]
Right ascension	12^h 28^m 29.6^s[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 imaged by the Hubble Space Telescope

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]

References

1. 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.
2. "NASA/IPAC Extragalactic Database". Results for NGC 4450. Retrieved 2007-04-01.
3. AN ATLAS OF THE UNIVERSE - THE VIRGO CLUSTER
4. 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.
5. 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.
6. Swirling Gas Disk around Black Hole in Galaxy NGC 4450

External links

• Media related to NGC 4450 at Wikimedia Commons