NGC 4845
| NGC 4845 | |
|---|---|
 NGC 4845 as seen by HST | |
| Observation data (J2000 epoch) | |
| Constellation | Virgo |
| Right ascension | 12h 58m 01.2s[1] |
| Declination | 1° 34′ 33″ |
| Redshift | z=0.004110 (1232 km/s)[1] |
| Distance | 65 Mly |
| Apparent magnitude (V) | 11.2[2] |
| Characteristics | |
| Type | Sab[2] |
| Apparent size (V) | 4′.9 × 1′.3[2] |
| Other designations | |
| UGC 08087, 2MASX J12580124+0134320, NGC 4910, PGC 44392[3] | |
NGC 4845 (also known as NGC 4910) is a spiral galaxy located in the constellation Virgo around 65 million light years away.[4] The galaxy was originally discovered by William Herschel in 1786.[5] It is a member of the NGC 4753 Group of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.[6]
The galaxy has a supermassive black hole, called IGR J12580+0134, at its center with a mass of 300,000. In 2013, the ESA observed the black hole absorbing matter from a nearby, low-mass object; possibly a brown dwarf star.[7][8] The observed X-ray flare was caught by the ESA's INTEGRAL telescope.[9]
Gallery
[edit]-
NGC 4845's glowing centre hosts a gigantic version of a black hole.[10]
![NGC 4845's glowing centre hosts a gigantic version of a black hole.[10]](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f2/Supermassive_and_super-hungry_NGC_4845.jpg/240px-Supermassive_and_super-hungry_NGC_4845.jpg)
References
[edit]- ^ a b "NCG 4845". NASA/IPAC Extragalactic Database.
- ^ a b c "NCG 4845". Deep Sky Observatory. Archived from the original on 2015-02-24. Retrieved 2013-05-13.
- ^ "NGC 4910". The NGC/IC Project. Archived from the original on May 20, 2012. Retrieved May 13, 2013.
- ^ Morrow, Ashley (2016-01-08). "Hubble Sees a Supermassive and Super-hungry Galaxy". NASA. Retrieved 2020-08-21.
- ^ "NGC Objects: NGC 4800-4849". Courtney Seligman. Retrieved May 13, 2013.
- ^ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.
- ^ "Astronomers watch as supermassive black hole 'wakes up,' swallows planet whole". National Post. April 4, 2013. Retrieved May 13, 2013.
- ^ Lei, Wei-Hua; Yuan, Qiang; Zhang, Bing; Wang, Daniel (2016-01-01). "Igr J12580+0134: The First Tidal Disruption Event with an Off-Beam Relativistic Jet". The Astrophysical Journal. 816 (1): 20. arXiv:1511.01206. doi:10.3847/0004-637X/816/1/20. ISSN 0004-637X.
- ^ Jeff LaSala (April 3, 2013). "Watch a Black Hole Feed on Its Planet-Sized Prey". Geekosystem. Retrieved May 13, 2013.
- ^ "Supermassive and super-hungry". Retrieved 4 January 2016.
External links
[edit]
- NGC 4845 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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