Astronomy:NGC 252

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NGC 252
SDSS image of NGC 252
Observation data (J2000 epoch)
ConstellationAndromeda
Right ascension 00h 48m 01.484s[1]
Declination+27° 37′ 25.76″[1]
Redshift0.016471[2]
Helio radial velocity4938[2]
Distance245.54 ± 31.56 Mly (75.283 ± 9.677 Mpc)[2]
Apparent magnitude (V)13.4
Apparent magnitude (B)12.49
Characteristics
Type(R)SA0+(r)[2]
Size121.4 kly (37.23 kpc)[2]
Apparent size (V)1.7′ × 1.309′[2]
Other designations
UGC 491, MGC+04-03-004, PGC 2819[3]

NGC 252 is a lenticular galaxy located in the constellation Andromeda. It was discovered by William Herschel in 1786.[4]

One supernova has been observed in NGC 252: SN 1998de (type Ia, mag. 18.4) was discovered by the Lick Observatory Supernova Search (LOSS) on 23 July 1998.[5][6]

See also

References

  1. ↑ 1.0 1.1 Skrutskie, Michael F.; Cutri, Roc M.; Stiening, Rae; Weinberg, Martin D.; Schneider, Stephen E.; Carpenter, John M.; Beichman, Charles A.; Capps, Richard W. et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal 131 (2): 1163–1183. doi:10.1086/498708. ISSN 0004-6256. Bibcode: 2006AJ....131.1163S. 
  2. ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "NASA/IPAC Extragalactic Database". Results for NGC 252. http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+252&extend=no&hconst=73&omegam=0.27&omegav=0.73&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES. 
  3. ↑ "NGC 252". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+252. 
  4. ↑ "NGC 252 (= PGC 2819)". http://cseligman.com/text/atlas/ngc2a.htm#252. 
  5. ↑ Modjaz, M.; Halderson, E.; Shefler, T.; King, J. Y.; Li, W. D.; Treffers, R. R.; Filippenko, A. V. (1998). "Supernova 1998de in NGC 252". International Astronomical Union Circular (6977): 1. Bibcode: 1998IAUC.6977....1M. http://www.cbat.eps.harvard.edu/iauc/06900/06977.html#Item1. 
  6. ↑ "SN 1998de". IAU. https://www.wis-tns.org/object/1998de. 




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