NGC 7619
| NGC 7619 | |
|---|---|
 SDSS image of NGC 7619 | |
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 23h 17m 14.524s[1] |
| Declination | +08° 12′ 22.63″[1] |
| Redshift | 0.01324[1] |
| Heliocentric radial velocity | 3,944 km/s[1] |
| Apparent magnitude (B) | 12.7[1] |
| Characteristics | |
| Type | E2[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
[edit]- ^ a b c d e f g "NGC 7619". Simbad. Université de Strasbourg/CNRS. Retrieved 2021-02-10.
- ^ 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.
- ^ 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.
- ^ 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.
- ^ Seligman, Courtney. "New General Catalogue objects: NGC 7600 - 7649". cseligman.com. Retrieved 2021-02-10.
- ^ 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.
- ^ 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.
- ^ "SN 1970J". Transient Name Server. IAU. Retrieved 2 December 2024.
- ^ "SN 1970J". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2021-02-10.
External links
[edit]Media related to NGC 7619 at Wikimedia Commons
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