NGC 4874
| NGC 4874 | |
|---|---|
 NGC 4874 dominates this picture created from optical and near-infrared exposures taken with the Wide Field Channel of Hubble's Advanced Camera for Surveys. (Credit: ESA/Hubble, NASA) | |
| Observation data (J2000 epoch) | |
| Constellation | Coma Berenices |
| Right ascension | 12h 59m 35.709s[1] |
| Declination | +27° 57′ 33.80″[1] |
| Redshift | 0.023907±0.00000667[2] |
| Heliocentric radial velocity | 7,167±2 km/s[2] |
| Distance | 315.73 ± 6.41 Mly (96.804 ± 1.966 Mpc)[2] |
| Group or cluster | Coma Cluster |
| Apparent magnitude (V) | 11.4[3] |
| Apparent magnitude (B) | 13.7[4] |
| Characteristics | |
| Type | cD; Di |
| Size | 79.792 to 82.79 kpc (260,250 to 270,020 ly) (diameter; D25.0 B-band and 2MASS K-band total isophotes[2] |
| Apparent size (V) | 1.9′ × 1.9′[2] |
| Other designations | |
| 2MASX J12593570+2757338, UGC 8103, LEDA 44628, MCG +05-31-070, PGC 44628, CGCG 160-231, SDSS J125935.70+275733.3[2] | |
NGC 4874 is a supergiant elliptical galaxy in the constellation of Coma Berenices. It was discovered on 11 April 1785 by German-British astronomer William Herschel, who catalogued it as a bright patch of nebulous feature.[5] The second-brightest galaxy within the northern Coma Cluster, it is located at a distance of about 97 megaparsecs (316,000,000 light-years) from Earth.[6]
Characteristics
[edit] |
The galaxy is surrounded by an immense stellar halo that extends up to one million light-years in diameter.[7] It is also enveloped by a huge cloud of interstellar medium that is currently being heated by the action of infalling material from its central supermassive black hole. A jet of highly energetic plasma extends out to 1,700 light-years from its center. The galaxy has 18,700±2,260 globular clusters.
Supernovae
[edit]Three supernovae have been observed in NGC 4874:
- SN 1968B (type unknown, mag. 17.4) was discovered by Fritz Zwicky on 3 February 1968.[8][9]
- SN 1981G (Type Ia, mag. 15) was discovered by Miklós Lovas on 2 June 1981.[10][11]
- SN 2025ilo (Type Ib, mag. 20.6) was discovered by A. Horti-David, K. Sarneczky, and J. Vinko on 26 April 2025.[12]
See also
[edit]References
[edit]- ^ a b "SIMBAD basic query result". SIMBAD Astronomical Database. Retrieved 20 September 2011.
- ^ a b c d e f "NASA/IPAC Extragalactic Database". Results for NGC 4889. Retrieved 2015-01-04.
- ^ Michard, R.; Andreon, S. (2008). "Morphology of galaxies in the Coma cluster region down to M_B = −14.25. I. A catalog of 473 members". Astronomy and Astrophysics. 490 (3): 923. arXiv:0809.2487. Bibcode:2008A&A...490..923M. doi:10.1051/0004-6361:200810283. S2CID 16930860.
- ^ Falco, Emilio E.; Kurtz, Michael J.; Geller, Margaret J.; Huchra, John P.; Peters, James; Berlind, Perry; Mink, Douglas J.; Tokarz, Susan P.; Elwell, Barbara (1999). "The Updated Zwicky Catalog (UZC)". Publications of the Astronomical Society of the Pacific. 111 (758): 438. arXiv:astro-ph/9904265. Bibcode:1999PASP..111..438F. doi:10.1086/316343. S2CID 14298026.
- ^ Seligman, Courtney. "New General Catalogue Objects: NGC 4874". Celestial Atlas. Retrieved 19 January 2026.
- ^ "Distance Results for NGC 4874". NASA/IPAC Extragalactic Database. NASA. Retrieved 19 January 2026.
- ^ "Hubble Catches Galaxies Swarmed by Star Clusters - NASA Science". 2017-09-29. Retrieved 2025-08-20.
- ^ Zwicky, F. (28 February 1968). Marsden, Brian G. (ed.). "SUPERNOVA IN NGC 4874". Central Bureau for Astronomical Telegrams. 2056. IAU: 1. Retrieved 2 December 2024.
- ^ "SN 1968B". Transient Name Server. IAU. Retrieved 2 December 2024.
- ^ Szeidl, B.; Lovas, M.; Torres, C.; Gonzalez, E. (1981). "Supernovae". International Astronomical Union Circular (3610): 1. Bibcode:1981IAUC.3610....1S.
- ^ "SN 1981G". Transient Name Server. IAU. Retrieved 2 December 2024.
- ^ "SN 2025ilo". Transient Name Server. IAU. Retrieved 3 May 2025.
External links
[edit]- "Galaxies in a Swarm of Star Clusters". Picture of the Week. ESA/Hubble. Retrieved 20 September 2011.
Media related to NGC 4874 at Wikimedia Commons
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