Astronomy:NGC 7619

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Short description: Galaxy in the constellation Pegasus
NGC 7619
NGC7619 - SDSS DR14.jpg
SDSS image of NGC 7619
Observation data (J2000 epoch)
ConstellationPegasus
Right ascension 23h 17m 14.524s[1]
Declination+08° 12′ 22.63″[1]
Redshift0.01324[1]
Helio radial velocity3,944 km/s[1]
Apparent magnitude (B)12.7[1]
Characteristics
TypeE2[1]
Other designations
UGC 12523, MCG+01-59-052, PGC 71121[1]

NGC 7619 is an elliptical galaxy located in the constellation Pegasus.[2] NGC 7619 and NGC 7626[3] are the dominant and brightest members of the Pegasus galaxy cluster.[4] Both of them were discovered by William Herschel on September 26, 1785.[5]

The radial velocity of this galaxy was measured in 1929 and found to be double that of any galaxy observed at that time.[6] The measurement was consistent with the extrapolated value predicted by Edwin Hubble; a distance-velocity relation that would later become known as Hubble's Law.[7]

In 1970, a type Ia supernova was detected within NGC 7619; it was subsequently designated SN 1970J.[8]

References

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 "NGC 7619". Université de Strasbourg/CNRS. http://simbad.u-strasbg.fr/simbad/sim-id?Ident=NGC+7619. 
  2. Hodge, Paul W. (1961-07-01). "The Gravitattional Stability of the NGC 7619 Group of Galaxies.". The Astrophysical Journal 134: 262. doi:10.1086/147151. Bibcode1961ApJ...134..262H. 
  3. Randall, S. W.; Jones, C.; Kraft, R.; Forman, W. R.; Sullivan, E. (April 2009). "Merging Cold Fronts In The Galaxy Pair NGC 7619 AND NGC 7626" (in en). The Astrophysical Journal 696 (2): 1431–1440. doi:10.1088/0004-637X/696/2/1431. Bibcode2009ApJ...696.1431R. 
  4. Edson, J. B.; Zwicky, F. (1941). "Remarks on the Pegasus Cluster of Nebulae". Proceedings of the National Academy of Sciences 27 (8): 366–369. doi:10.1073/pnas.27.8.366. PMID 16588471. Bibcode1941PNAS...27..366E. 
  5. Seligman, Courtney. "New General Catalogue objects: NGC 7600 - 7649". http://cseligman.com/text/atlas/ngc76.htm#7619. Retrieved 2021-02-10. 
  6. Humason, Milton L. (March 15, 1929). "The Large Radial Velocity of N.G.C. 7619". PNAS 15 (3): 167–168. doi:10.1073/pnas.15.3.167. PMID 16577159. Bibcode1929PNAS...15..167H. 
  7. Hubble, E.P. (1929). "A Clue to the Structure of the Universe". Leaflet of the Astronomical Society of the Pacific 1 (23): 93. Bibcode1929ASPL....1...93H. 
  8. "SN 1970J". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=SN+1970J. 

External links