Astronomy:NGC 3949

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Short description: Spiral galaxy in the constellation Ursa Major
NGC 3949
NGC 3949.jpg
A Hubble Space Telescope (HST) image of NGC 3949
Observation data (J2000 epoch)
ConstellationUrsa Major
Right ascension 11h 53m 41.4s[1]
Declination+47° 51′ 31.6″[1]
Redshift800 ± 1 km/s[1]
Distance50 million light-years[citation needed]
Apparent magnitude (V)11.5[1]
Characteristics
TypeSA(s)bc[1]
Size50,000 ly (diameter)
Apparent size (V)2.9 × 1.7[1]
Other designations
UGC 6869,[1] PGC 37290[1]

NGC 3949 is an unbarred spiral galaxy in the constellation Ursa Major. It is believed to be approximately 50 million light-years away from the Earth. 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.[2][3][4]

The type II supernova SN 2000db is the only supernova that has been observed within NGC 3949.[1]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "NASA/IPAC Extragalactic Database". Results for NGC 3949. https://ned.ipac.caltech.edu/uri/NED::ByName/NGC%203949. 
  2. R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN 978-0-521-35299-4. 
  3. A. Garcia (1993). "General study of group membership. II - Determination of nearby groups". Astronomy and Astrophysics Supplement 100: 47–90. Bibcode1993A&AS..100...47G. 
  4. 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. doi:10.1086/317070. Bibcode2000ApJ...543..178G. 

External links