NGC 7722

NGC 7722 is a lenticular galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 3,639±26 km/s, which corresponds to a Hubble distance of 175.0 ± 12.3 Mly (53.67 ± 3.78 Mpc).^[1] It was discovered by German astronomer Heinrich Louis d'Arrest on 12 August 1864.^[2]

ConstellationPegasus

Right ascension23^h 38^m 41.2192^s[1]

Declination+15° 57′ 17.207″^[1]

Redshift0.013353±0.00000667^[1]

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

NGC 7722
NGC 7722 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Pegasus
Right ascension	23h 38m 41.2192s[1]
Declination	+15° 57′ 17.207″[1]
Redshift	0.013353±0.00000667[1]
Heliocentric radial velocity	4,003±2 km/s[1]
Distance	175.0 ± 12.3 Mly (53.67 ± 3.78 Mpc)[1]
Group or cluster	NGC 7711 group (LGG 477)
Apparent magnitude (V)	13.3g[1]
Characteristics
Type	S0/a[1]
Size	~122,600 ly (37.58 kpc) (estimated)[1]
Apparent size (V)	1.69′ × 1.19′[1]
Other designations
IRAS 23361+1540, 2MASX J23384119+1557174, UGC 12718, MCG +03-60-017, PGC 71993, CGCG 455-035[1]

Close

NGC 7722 is a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.^[3][4]