NGC 7321

NGC 7321 is a barred spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 6,793±25 km/s, which corresponds to a Hubble distance of 326.8 ± 22.9 Mly (100.19 ± 7.02 Mpc).^[1] However, seven non-redshift measurements give a closer mean distance of 297.50 ± 14.14 Mly (91.214 ± 4.334 Mpc).^[2] It was discovered by German-British astronomer William Herschel on 17 November 1784.^[3][4]

ConstellationPegasus

Right ascension22^h 36^m 28.0108^s[1]

Declination+21° 37′ 18.648″^[1]

Redshift0.023843±0.0000120^[1]

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

NGC 7321
NGC 7321 imaged by SDSS
Observation data (J2000 epoch)
Constellation	Pegasus
Right ascension	22h 36m 28.0108s[1]
Declination	+21° 37′ 18.648″[1]
Redshift	0.023843±0.0000120[1]
Heliocentric radial velocity	7,148±4 km/s[1]
Distance	297.50 ± 14.14 Mly (91.214 ± 4.334 Mpc)[2]
Apparent magnitude (V)	13.71[1]
Characteristics
Type	SB(r)b[1]
Size	~147,100 ly (45.11 kpc) (estimated)[1]
Apparent size (V)	1.6′ × 1.1′[1]
Other designations
HOLM 793A, IRAS 22340+2121, 2MASX J22362802+2137186, UGC 12103, MCG +03-57-021, PGC 69287, CGCG 452-031[1]

Close

NGC 7321 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.^[5][6]