NGC 2950

NGC 2950 is a lenticular galaxy in Ursa Major about 60 million light years from the Milky Way. It was discovered in 1790 by the Anglo-German astronomer William Herschel.[1]

NGC 2950
Lenticular galaxy NGC 2950
Object typeLenticular galaxy
Other designationsNGC 2950, MCG+10-14-032, UGC 5176, PGC 27765, 2MASX J09423511+5851043, Z 0939.0+5905, Z 289-16, UZC J094235.1+585105, SDSS J094235.14+585104.5, SDSS J094235.10+585104.8, LEDA 27765
Observation data
(Epoch J2000)
ConstellationUrsa Major
 09h 42m 35.1s
Declination58° 51′ 05″
Redshift0.004410 ± 0.000017
Distance15.28, 15.28 Mpc (49,800,000, 49,800,000 ly)
10.9, 11.8, 8.834 ±0.008, 8.155 ±0.011, 7.885 ±0.013, 13.482 ±0.002, 11.645 ±0.001, 10.903 ±0.001, 10.501 ±0.001, 10.23 ±0.002 
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NGC 2950 is a field galaxy, it is not part of a galaxy cluster or galaxy group, and thus is gravitationally isolated.[2] Measures that do not rely on redshift give a distance of 18,733 ± 3,210 Mpc (∼61,1 million astronomical units)[3], which is within the distance calculated by redshift.

NGC 2950 hosts two nested stellar bars; the rotation frequency of the secondary bar is higher than that of the primary one.[4]

References
  1. Seligman, Courtney (2016). "NGC 2950 (= PGC 27765)". Celestial Atlas. Professor Seligman. Retrieved May 1, 2020.
  2. "NASA/IPAC Extragalactic Database". Results for NGC 2950. Retrieved October 28, 2018.
  3. "Your NED Search Results". ned.ipac.caltech.edu. Retrieved November 2, 2018.
  4. Corsini, E. M.; Debattista, Victor P (2003). "Direct Confirmation of Two Pattern Speeds in the Double-Barred Galaxy NGC 29501". The Astrophysical Journal. 599: L29–L32. doi:10.1086/381080. Retrieved May 1, 2020.
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