Astronomy: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] |
| Helio 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 | |
| UGC 8103, MCG+05-31-070, PGC 44628[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
Template:Section unreferenced 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
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
References
- ↑ 1.0 1.1 "SIMBAD basic query result". SIMBAD Astronomical Database. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=NGC+4874&submit=SIMBAD+search.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 "NASA/IPAC Extragalactic Database". Results for NGC 4889. http://ned.ipac.caltech.edu/cgi-bin/objsearch?objname=NGC+4889&extend=no&hconst=67.80&omegam=0.268&omegav=0.683&corr_z=1&out_csys=Equatorial&out_equinox=J2000.0&obj_sort=RA+or+Longitude&of=pre_text&zv_breaker=30000.0&list_limit=5&img_stamp=YES.
- ↑ 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. doi:10.1051/0004-6361:200810283. Bibcode: 2008A&A...490..923M.
- ↑ Falco, Emilio E.; Kurtz, Michael J.; Geller, Margaret J.; Huchra, John P.; Peters, James; Berlind, Perry; Mink, Douglas J.; Tokarz, Susan P. et al. (1999). "The Updated Zwicky Catalog (UZC)". Publications of the Astronomical Society of the Pacific 111 (758): 438. doi:10.1086/316343. Bibcode: 1999PASP..111..438F.
- ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4874". https://cseligman.com/text/atlas/ngc48a.htm#4874.
- ↑ "Distance Results for NGC 4874". NASA. https://ned.ipac.caltech.edu/cgi-bin/nDistance?name=NGC+4874.
- ↑ "Hubble Catches Galaxies Swarmed by Star Clusters - NASA Science" (in en-US). 2017-09-29. https://science.nasa.gov/missions/hubble/hubble-catches-galaxies-swarmed-by-star-clusters/.
- ↑ Zwicky, F. (28 February 1968). Marsden, Brian G.. ed. "SUPERNOVA IN NGC 4874". Central Bureau for Astronomical Telegrams (IAU) 2056: 1. http://www.cbat.eps.harvard.edu/IAUCs/IAUC2056.jpg. Retrieved 2 December 2024.
- ↑ "SN 1968B". IAU. https://www.wis-tns.org/object/1968B.
- ↑ Szeidl, B.; Lovas, M.; Torres, C.; Gonzalez, E. (1981). "Supernovae". International Astronomical Union Circular (3610): 1. Bibcode: 1981IAUC.3610....1S. http://www.cbat.eps.harvard.edu/iauc/03600/03610.html#Item1.
- ↑ "SN 1981G". IAU. https://www.wis-tns.org/object/1981G.
- ↑ "SN 2025ilo". IAU. https://www.wis-tns.org/object/2025ilo.
External links
- "Galaxies in a Swarm of Star Clusters". Picture of the Week. ESA/Hubble. http://www.spacetelescope.org/images/potw1138a/.
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