NGC 7316

NGC 7316 is a barred spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 5,198±25 km/s, which corresponds to a Hubble distance of 250.1 ± 17.5 Mly (76.67 ± 5.38 Mpc).^[1] However, three non-redshift measurements give a closer mean distance of 212.87 ± 3.89 Mly (65.267 ± 1.192 Mpc).^[2] It was discovered by German-British astronomer William Herschel on 18 September 1784.^[3][4]

ConstellationPegasus

Right ascension22^h 35^m 56.3485^s[1]

Declination+20° 19′ 19.666″^[1]

Redshift0.018529±0.00000200^[1]

Quick facts Observation data (J2000 epoch), Constellation ...

NGC 7316
NGC 7316 imaged by SDSS
Observation data (J2000 epoch)
Constellation	Pegasus
Right ascension	22h 35m 56.3485s[1]
Declination	+20° 19′ 19.666″[1]
Redshift	0.018529±0.00000200[1]
Heliocentric radial velocity	5,555±1 km/s[1]
Distance	212.87 ± 3.89 Mly (65.267 ± 1.192 Mpc)[2]
Apparent magnitude (V)	13.62[1]
Characteristics
Type	SBc[1]
Size	~77,800 ly (23.86 kpc) (estimated)[1]
Apparent size (V)	1.1′ × 0.9′[1]
Other designations
IRAS 22335+2003, 2MASX J22355633+2019201, UGC 12098, MCG +03-57-020, Mrk 307, PGC 69259, CGCG 452-030[1]

Close

NGC 7316 has a possible active galactic nucleus, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.^[5][6] NGC 7316 is also a starburst galaxy.^[1]

NGC 7316 has a nucleus with excessive amounts of ultraviolet emissions compared with other galaxies, and is listed in the Markarian catalogue as MRK 307.^[7]