NGC 4874 is a supergiant elliptical galaxy. It was discovered by the British astronomer Frederick William Herschel I in 1785, who catalogued it as a bright patch of nebulous feature. The second-brightest galaxy within the northern Coma Cluster, it is located at a distance of 109 megaparsecs (350,000,000 light-years) from Earth.
Characteristics
The galaxy is surrounded by an immense stellar halo that extends up to one million light-years in diameter. It is also enveloped by a huge cloud of interstellar medium that is currently being heated by 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
Two supernovae have been observed in NGC 4874:
- SN 1968B (type unknown, mag. 17.4) was discovered by Fritz Zwicky on 3 February 1968.[5][6]
- SN 1981G (type Ia, mag. 15) was discovered by Miklos Lovas on 2 June 1981.[7][8]
See also
References
- ^ a b "SIMBAD basic query result". SIMBAD Astronomical Database. Retrieved 20 September 2011.
- ^ a b c d "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.
- ^ Marsden, Brian G. (28 February 1968). "Circular No. 2056". Central Bureau for Astronomical Telegrams. Smithsonian Astrophysical Observatory. 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.
External links
- "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
