NGC_3949 Knowpia

NGC 3949
NGC 3949
	A Hubble Space Telescope (HST) image of NGC 3949
Observation data (J2000 epoch)
Constellation	Ursa Major
Right ascension	11h 53m 41.4s
Declination	+47° 51′ 31.6″
Redshift	800 ± 1 km/s
Distance	50 million light-years[citation needed]
Apparent magnitude (V)	11.5
Characteristics
Type	SA(s)bc
Size	50,000 ly (diameter)
Apparent size (V)	2.9′ × 1.7′
Other designations
	UGC 6869, PGC 37290

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 edit

^ ^a ^b ^c ^d ^e ^f ^g ^h ⁱ "NASA/IPAC Extragalactic Database". Results for NGC 3949. Retrieved 2006-11-16.
^ R. B. Tully (1988). Nearby Galaxies Catalog. Cambridge: Cambridge University Press. ISBN 978-0-521-35299-4.
^ 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.
^ 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.