astro.wikisort.org - GalaxyNGC 4478 is an elliptical galaxy located about 50 million light-years away[3] in the constellation Virgo.[4] NGC 4478 was discovered by astronomer William Herschel on April 12, 1784.[5] NGC 4478 is a member of the Virgo Cluster.[6]
Elliptical galaxy in the constellation of Virgo
NGC 4478 |
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 SDSS image of NGC 4478. |
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Constellation | Virgo |
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Right ascension | 12h 30m 17.4s[1] |
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Declination | 12° 19′ 43″[1] |
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Redshift | 0.004500/1349 km/s[1] |
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Distance | 52.2 Mly[2] |
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Group or cluster | Virgo Cluster |
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Apparent magnitude (V) | 12.36[1] |
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Type | E2[1] |
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Size | ~30,000 ly (estimated)[1] |
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Apparent size (V) | 1.9 x 1.6[1] |
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CGCG 70-133, MCG 2-32-99, PGC 41297, UGC 7645, VCC 1279[1] |
Nuclear disk
Hubble images indicate that NGC 4478 has a central nuclear disk.[7]
In NGC 4478, the central regions of the galaxy are high in metals while having less overabundance of the element iron than the main body. In contrast, the outer regions of the galaxy are low in metals while having a high overabundance in iron.[7]
Globular clusters
NGC 4478 has a typical sub-population of metal-poor globular clusters. However, it has a lack of metal-rich clusters. The lack of metal-rich clusters in other galaxies is usually attributed to accretion, or mergers with other galaxies. The only other known elliptical that has been shown to have a domination of metal-poor globular clusters is the giant galaxy NGC 4874 which is located in the center of the Coma Cluster.[2]
Reduced population
Due to tidal truncation caused by Messier 87, a significant amount of globular clusters have been striped away from NGC 4478 and have become members of Messier 87's globular cluster system.[8]
Interaction with Messier 87
NGC 4478 is likely to be a companion of the giant elliptical Messier 87. The two galaxies are separated from each other by about 130,400 Light-years (40 kpc). NGC 4478 has been tidally truncated by Messier 87.[2]
See also
References
- "NASA/IPAC Extragalactic Database". Results for NGC 4478. Retrieved 2017-10-15.
- Kissler-Patig, M.; Brodie, J. P.; Minniti, D. (4 June 2002). "Extragalactic globular clusters in the near infrared. I. A comparison between M87 and NGC 4478" (PDF). Astronomy & Astrophysics. 391 (2): 441–452. arXiv:astro-ph/0206140. Bibcode:2002A&A...391..441K. doi:10.1051/0004-6361:20020831. S2CID 16529462.
- "Your NED Search Results". ned.ipac.caltech.edu. Retrieved 2017-10-15.
- Rojas, Sebastián García. "Galaxy NGC 4478 - Elliptical Galaxy in Virgo Constellation · Deep Sky Objects Browser". DSO Browser. Retrieved 2017-10-15.
- "New General Catalog Objects: NGC 4450 - 4499". cseligman.com. Retrieved 2017-10-08.
- "Detailed Object Classifications". ned.ipac.caltech.edu. Retrieved 2017-10-15.
- Morelli, L.; Halliday, C.; Corsini, E. M.; Pizzella, A.; Thomas, D.; Saglia, R. P.; Davies, R. L.; Bender, R.; Birkinshaw, M.; Bertola, F. (19 July 2004). "Nuclear stellar discs in low-luminosity elliptical galaxies: NGC 4458 and 4478" (PDF). Monthly Notices of the Royal Astronomical Society. 354 (3): 753–762. arXiv:astro-ph/0408084. Bibcode:2004MNRAS.354..753M. doi:10.1111/j.1365-2966.2004.08236.x. S2CID 13933949.
- NEILSEN, JR., ERIC H.; TSVETANOV, ZLATAN I.; FORD, HOLLAND C. (6 February 1997). "The Surface Brightness Fluctuations and Globular Cluster Population of NGC 4478". The Astrophysical Journal. 483 (2): 745–753. arXiv:astro-ph/9712339. Bibcode:1997ApJ...483..745N. doi:10.1086/304267. S2CID 15606310.
External links
Wikimedia Commons has media related to
NGC 4478.
Virgo constellation |
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Stars (list) | |
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Star clusters | |
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Nebulae | |
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Galaxies | Messier | |
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NGC | |
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Other |
- A1689-zD1
- Abell 1835 IR1916
- Arp 240 (NGC 5257 and NGC 5258)
- Arp 271 (NGC 5426 and NGC 5427)
- BR 1202-0725
- 3C 273
- 3C 279
- 3C 298
- 4C 04.42
- Eyes Galaxies
- GR 8
- IC 1011
- IC 1101
- IC 3258
- IC 3328
- IRAS 12212+0305
- IRAS 13197−1627
- M60-UCD1
- Markarian 50
- Markarian 1318
- PG 1216+069
- PG 1244+026
- PG 1254+047
- PG 1307+085
- PG 1416−129
- PG 1426+015
- PKS 1148-001
- PKS 1167+014
- PKS 1217+023
- PKS 1229−021
- PKS 1302−102
- PKS 1335−127
- PKS 1402+044
- PKS 1405−076
- QSO B1208+1011
- QSO B1243−072
- QSO B1246−057
- QSO B1331+170
- RXJ1242−11
- SMM J14011+0252
- UM 448
- UM 461
- UM 462
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Galaxy clusters | |
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Other |
- GRB 930131
- GRB 030328
- GRB 050408
- GRB 050801
- GRB 080310
- North Polar Spur
- SN 1960F
- SN 1981B
- SN 1990B
- SN 1990N
- SN 1991T
- SN 1991bg
- SN 1994D
- SN 1999br
- SN 2002cx
- SN 2007bi
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На других языках
[de] NGC 4478
NGC 4478 ist eine elliptische Galaxie vom Hubble-Typ E2 im Sternbild Jungfrau am Nordsternhimmel, die schätzungsweise 58 Millionen Lichtjahre von der Milchstraße entfernt ist. Die Galaxie befindet sich in der Nähe der Galaxie NGC 4476 und ist Teil des Virgo-Galaxienhaufens.
- [en] NGC 4478
[ru] NGC 4478
NGC 4478 (другие обозначения — UGC 7645, MCG 2-32-99, ZWG 70.133, VCC 1279, PGC 41297) — эллиптическая галактика (E2) в созвездии Дева.
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