NGC 4163

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NGC 4163
NGC 4163 Hubble.jpg
Hubble Space Telescope image of NGC 4163
Observation data (J2000 epoch)
Constellation Canes Venatici
Right ascension 12h 12.9m [1]
Declination 36° 10′ [1]
Distance 2.959 megaparsecs (9.65 Mly)
Apparent magnitude  (V)14.5 [1]
Characteristics
Type dIrr [1]
Apparent size  (V)1.9′ × 1.6′ [1]
Other designations
NGC 4167, UGC 7199, PGC 38881, MCG 6-27-26

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]

References

  1. 1 2 3 4 5 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.


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