NGC 4450

From Wikipedia, the free encyclopedia
Jump to: navigation, search
NGC 4450
N4450s.jpg
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]
Type SA(s)ab[2]
Apparent dimensions (V) 5′.2 × 3′.9[2]
Apparent magnitude (V) 10.9[2]
Other designations
UGC 7594,[2] PGC 41024[2]
See also: Galaxy, List of galaxies

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]

  1. ^ R. W. Sinnott, editor (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 0-933-34651-4. 
  2. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for NGC 4450. Retrieved 2007-04-01. 
  3. ^ AN ATLAS OF THE UNIVERSE - THE VIRGO CLUSTER
  4. ^ 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. 
  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