NGC 3949

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NGC 3949
NGC 3949.jpg
NGC 3949 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation Ursa Major
Right ascension 11h 53m 41.7948s [1]
Declination +47° 51 31.387 [1]
Redshift 800 ± 1 km/s [1]
Distance 48.6 ± 3.5  Mly (14.89 ± 1.06  Mpc) [1]
Apparent magnitude  (V)11.5 [1]
Characteristics
Type SA(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]

Contents

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. 1 2 3 4 5 6 7 8 "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.