NGC 3949

NGC 3949
NGC 3949 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationUrsa Major
Right ascension11h 53m 41.7948s[1]
Declination+47° 51′ 31.387″[1]
Redshift800 ± 1 km/s[1]
Distance48.6 ± 3.5 Mly (14.89 ± 1.06 Mpc)[1]
Apparent magnitude (V)11.5[1]
Characteristics
TypeSA(s)bc[1]
Size~47,800 ly (14.66 kpc) (estimated)
Apparent size (V)2.9′ × 1.7′[1]
Other designations
HOLM 301A, IRAS 11510+4808, UGC 6869, MCG +08-22-029, PGC 37290, CGCG 243-025[1]

NGC 3949 is an unbarred spiral galaxy in the constellation Ursa Major, approximately 50 million light-years away from the Earth. It was discovered by German-British astronomer William Herschel on 5 February 1788.[2]

NGC 3949 is a member of the M109 Group, a group of galaxies located in the constellation Ursa Major that may contain over 50 galaxies. The brightest galaxy in the group is the spiral galaxy M109.[3][4][5]

One supernova has been observed in NGC 3949: SN 2000db (type II, mag. 14.3) was discovered by Masakatsu Aoki on 6 August 2000.[6][7]

See also

References

  1. ^ a b c d e f g h "NASA/IPAC Extragalactic Database". Results for object NGC 3949. Retrieved 2006-11-16.
  2. ^ Seligman, Courtney. "NGC 3949". Celestial Atlas. Retrieved 9 August 2024.
  3. ^ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN 978-0-521-35299-4.
  4. ^ A. Garcia (1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement. 100: 47–90. Bibcode:1993A&AS..100...47G.
  5. ^ G. Giuricin; C. Marinoni; L. Ceriani; A. Pisani (2000). "Nearby Optical Galaxies: Selection of the Sample and Identification of Groups". Astrophysical Journal. 543 (1): 178–194. arXiv:astro-ph/0001140. Bibcode:2000ApJ...543..178G. doi:10.1086/317070. S2CID 9618325.
  6. ^ Nakano, S.; Aoki, M. (2000). "Supernova 2000db in NGC 3949". International Astronomical Union Circular (7475): 1. Bibcode:2000IAUC.7475....1N.
  7. ^ "Transient Name Server". Entry for SN 2000db. Retrieved 9 August 2024.
  • Media related to NGC 3949 at Wikimedia Commons
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