NGC 4845 explained

NGC 4845
Epoch:	J2000
Type:	Sab
Dist Ly:	65 Mly
Z:	z=0.004110 (1232 km/s)^[1]
Appmag V:	11.2^[2]
Size V:	4′.9 × 1′.3
Constellation Name:	Virgo
Names:	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 at its center with a mass of 300,000

\begin{smallmatrix}M _{\odot\end{smallmatrix}} . In 2013, the ESA observed the black hole absorbing matter from a nearby, low-mass object; possibly a brown dwarf star.^[7] The observed X-ray flare was caught by the ESA's INTEGRAL telescope.^[8]

Notes and References

1. Web site: NCG 4845. NASA/IPAC Extragalactic Database.
2. Web site: NCG 4845. Deep Sky Observatory. 2013-05-13. 2015-02-24. https://web.archive.org/web/20150224033641/http://dso-browser.com/dso/info/NGC/4845. dead.
3. Web site: NGC 4910. The NGC/IC Project. May 13, 2013. dead. https://web.archive.org/web/20120520010558/http://www.ngcicproject.org/ngcicdb.asp. May 20, 2012.
4. Web site: Morrow. Ashley. 2016-01-08. Hubble Sees a Supermassive and Super-hungry Galaxy. 2020-08-21. NASA.
5. Web site: NGC Objects: NGC 4800-4849. Courtney Seligman. May 13, 2013.
6. Web site: The Virgo III Groups . Atlas of the Universe . 2010-11-27 .
7. Web site: Astronomers watch as supermassive black hole 'wakes up,' swallows planet whole. National Post. April 4, 2013. May 13, 2013.
8. Web site: Watch a Black Hole Feed on Its Planet-Sized Prey . Jeff LaSala. Geekosystem. April 3, 2013. May 13, 2013.