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	47 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[3]

NGC 4845 (also known as NGC 4910) is a spiral galaxy located in the constellation Virgo around 47 million light years away. The galaxy was originally discovered by William Herschel in 1786.[4]

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.[5] The observed X-ray flare was caught by the ESA's INTEGRAL telescope.[6]

Gallery

NGC 4845's glowing centre hosts a gigantic version of a black hole.[7]

gollark: Haskell is *also* "to experiment with weird ideas".

gollark: I mean, Haskell fits "to be hard to program in"...

gollark: ```An esoteric programming language (ess-oh-terr-ick), or esolang, is a computer programming language designed to experiment with weird ideas, to be hard to program in, or as a joke, rather than for practical use. ```

gollark: My favourite esolang is probably Haskell.

gollark: I agree.

References

"NCG 4845". NASA/IPAC Extragalactic Database.
"NCG 4845". Deep Sky Observatory.
"NGC 4910". The NGC/IC Project. Archived from the original on May 20, 2012. Retrieved May 13, 2013.
"NGC Objects: NGC 4800-4849". Courtney Seligman. Retrieved May 13, 2013.
"Astronomers watch as supermassive black hole 'wakes up,' swallows planet whole". National Post. April 4, 2013. Retrieved May 13, 2013.
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

NGC 4845 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images

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[NED-1] "NCG 4845". NASA/IPAC Extragalactic Database.

[DSO-2] "NCG 4845". Deep Sky Observatory.

[3] "NGC 4910". The NGC/IC Project. Archived from the original on May 20, 2012. Retrieved May 13, 2013.

[4] "NGC Objects: NGC 4800-4849". Courtney Seligman. Retrieved May 13, 2013.

[5] "Astronomers watch as supermassive black hole 'wakes up,' swallows planet whole". National Post. April 4, 2013. Retrieved May 13, 2013.

[6] Jeff LaSala (April 3, 2013). "Watch a Black Hole Feed on Its Planet-Sized Prey". Geekosystem. Retrieved May 13, 2013.

[7] "Supermassive and super-hungry". Retrieved 4 January 2016.