NGC 7619

NGC 7619
SDSS image of NGC 7619
Observation data (J2000 epoch)
ConstellationPegasus
Right ascension23h 17m 14.524s[1]
Declination+08° 12′ 22.63″[1]
Redshift0.01324[1]
Heliocentric 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]

One supernova has been observed in NGC 7619: SN 1970J (type Ia, mag. 14.5) was discovered by Leonida Rosino on 24 September 1970.[8][9]

References

  1. ^ a b c d e f g "NGC 7619". Simbad. Université de Strasbourg/CNRS. Retrieved 2021-02-10.
  2. ^ Hodge, Paul W. (1961-07-01). "The Gravitattional Stability of the NGC 7619 Group of Galaxies". The Astrophysical Journal. 134: 262. Bibcode:1961ApJ...134..262H. doi:10.1086/147151.
  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". The Astrophysical Journal. 696 (2): 1431–1440. arXiv:0811.1217. Bibcode:2009ApJ...696.1431R. doi:10.1088/0004-637X/696/2/1431. S2CID 14950971.
  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. Bibcode:1941PNAS...27..366E. doi:10.1073/pnas.27.8.366. PMC 1078341. PMID 16588471.
  5. ^ Seligman, Courtney. "New General Catalogue objects: NGC 7600 - 7649". cseligman.com. 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. Bibcode:1929PNAS...15..167H. doi:10.1073/pnas.15.3.167. PMC 522426. PMID 16577159.
  7. ^ Hubble, E.P. (1929). "A Clue to the Structure of the Universe". Leaflet of the Astronomical Society of the Pacific. 1 (23): 93. Bibcode:1929ASPL....1...93H.
  8. ^ "SN 1970J". Transient Name Server. IAU. Retrieved 2 December 2024.
  9. ^ "SN 1970J". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-02-10.
  • Media related to NGC 7619 at Wikimedia Commons



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