Astronomy:NGC 4419

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NGC 4419
NGC 4419 imaged by SDSS
Observation data (J2000 epoch)
ConstellationComa Berenices
Right ascension 12h 26m 56.4494s[1]
Declination+15° 02′ 50.861″[1]
Redshift−0.000871±0.0000170[1]
Helio radial velocity−261±5 km/s[1]
Distance52.49 ± 2.51 Mly (16.095 ± 0.771 Mpc)[1]
Group or clusterVirgo Cluster
Apparent magnitude (V)12.2g[1]
Characteristics
TypeSB(s)a edge-on[1]
Size~60,300 ly (18.49 kpc) (estimated)[1]
Apparent size (V)3.38′ × 0.93′[1]
Other designations
VCC 958, IRAS 12244+1519, UGC 7551, MCG+03-32-038, PGC 40772[1]

NGC 4419 is a barred spiral galaxy in the constellation of Coma Berenices. It was discovered by German-British astronomer William Herschel on 8 April 1784.[2]

NGC 4419 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[3]

Distance

NGC 4419 has a velocity with respect to the cosmic microwave background of 64±23 km/s, which is too small to be used to estimate its distance.[1] Instead, 22 non-redshift measurements are used to give a mean distance of 52.49 ± 2.51 Mly (16.095 ± 0.771 Mpc).[4]

Supernovae

Two supernovae have been observed in NGC 4419:

  • SN 1984A (Type Ia, mag. 16) was discovered by Givi N. Kimeridze on 4 January 1984, and independently by Leonida Rosino on 7 January 1984.[5][6][7]
  • SN 2012cc (Type II, mag. 18.2) was discovered by the Lick Observatory Supernova Search (LOSS) on 29 April 2012.[8][9]

See also

References

  1. ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 "Results for object NGC 4419". NASA and Caltech. https://ned.ipac.caltech.edu/byname?objname=NGC+4419. 
  2. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4419". https://cseligman.com/text/atlas/ngc44.htm#4419. 
  3. ↑ "NGC 4419". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+4419. 
  4. ↑ "Distance Results for NGC 4419". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+4419. 
  5. ↑ Aksenov, E. P.; Kimeridze, G. N. (1984). "Supernova in NGC 4419". International Astronomical Union Circular (3907): 2. Bibcode: 1984IAUC.3907....2A. http://www.cbat.eps.harvard.edu/iauc/03900/03907.html#Item2. 
  6. ↑ Rosino, L. (1984). "Supernova in NGC 4419". International Astronomical Union Circular (3908): 2. Bibcode: 1984IAUC.3908....2R. http://www.cbat.eps.harvard.edu/iauc/03900/03908.html#Item2. 
  7. ↑ "SN 1984A". IAU. https://www.wis-tns.org/object/1984A. 
  8. ↑ Cenko, S. B.; Kandrashoff, M.; Li, W.; Filippenko, A. V.; Brimacombe, J.; Marion, G. H.; Milisavljevic, D.; Irwin, J. (2012). "Supernova 2012cc in NGC 4419 = PSN J12265681+1502455". Central Bureau Electronic Telegrams (3105): 1. Bibcode: 2012CBET.3105....1C. 
  9. ↑ "SN 2012cc". IAU. https://www.wis-tns.org/object/2012cc. 

Coordinates: Sky map 12h 26m 56.4494s, +15° 02′ 50.861″



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