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NGC 4163

Summary

NGC 4163, also known as NGC 4167, is a dwarf irregular galaxy in the constellation Canes Venatici, about 9.65 million light-years away. It was discovered by William Herschel on April 28, 1785 as NGC 4163. John Herschel discovered it again on March 11, 1831 as NGC 4167. It has a size on the night sky of 1.9' x 1.6', which, at its distance, gives a diameter of 4000 light-years. This galaxy consists of young blue stars.[2] It is a member of the M94 Group.[3][4][5]

NGC 4163
Hubble Space Telescope image of NGC 4163
Observation data (J2000 epoch)
ConstellationCanes Venatici
Right ascension12h 12.9m [1]
Declination36° 10′[1]
Distance2.959 megaparsecs (9.65 Mly)
Apparent magnitude (V)14.5[1]
Characteristics
TypedIrr[1]
Apparent size (V)1.9′ × 1.6′[1]
Other designations
NGC 4167, UGC 7199, PGC 38881, MCG 6-27-26

References edit

  1. ^ a b c d e Dunlop, Storm (2005). Atlas of the Night Sky. Collins. ISBN 978-0-00-717223-8.
  2. ^ "NGC 4163".
  3. ^ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN 978-0-521-35299-4.
  4. ^ Fouque, P.; Gourgoulhon, E.; Chamaraux, P.; Paturel, G. (May 1992). "Groups of galaxies within 80 Mpc. II. The catalogue of groups and group members". Astronomy and Astrophysics Supplement Series. 93: 211. Bibcode:1992A&AS...93..211F. ISSN 0365-0138.
  5. ^ Garcia, A. M. (July 1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G. ISSN 0365-0138.

External links edit

  •   Media related to NGC 4163 at Wikimedia Commons