NGC 605

NGC 605 is a lenticular galaxy in the constellation Andromeda, which is about 234 million light-years from the Milky Way. It was discovered on October 21, 1881 by the French astronomer Édouard Jean-Marie Stephan.^[6][5]

NGC 605
NGC 605
Observation data (J2000 epoch)
Constellation	Andromeda
Right ascension	01h 35m 02.34063s[1]
Declination	+41° 14′ 53.3204″[1]
Redshift	0.01705±0.00010[2]
Heliocentric radial velocity	5,110.86±29.98[2]
Distance	233.6 ± 16.4 Mly (71.63 ± 5.04 Mpc)[2]
Characteristics
Type	S0[3]
Size	~154,800 ly (47.46 kpc) (estimated)
Apparent size (V)	0.827 × 0.496 arcmin[4]
Other designations
UGC 1128, MCG +07-04-004, PGC 5891, CGCG 537-014[5]

SIMBAD lists NGC 605 as an active galaxy nucleus candidate.^[7]

One supernova has been observed in NGC 605: SN 2024nnu (type Ia, mag. 15.6).^[8]