NGC 2283

NGC 2283 is a barred spiral galaxy in the constellation of Canis Major. Its velocity with respect to the cosmic microwave background is 994 ± 11 km/s, which corresponds to a Hubble distance of 14.66 ± 1.04 Mpc (~48 million light-years).^[1] It was discovered by German-British astronomer William Herschel on 6 February 1785.^[2]

ConstellationCanis Major

Right ascension06^h 45^m 52.7853^s[1]

Declination−18° 12′ 37.319″^[1]

Redshift0.002805^[1]

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

NGC 2283
NGC 2283 imaged by SDSS
Observation data (J2000 epoch)
Constellation	Canis Major
Right ascension	06h 45m 52.7853s[1]
Declination	−18° 12′ 37.319″[1]
Redshift	0.002805[1]
Heliocentric radial velocity	841 ± 3 km/s[1]
Distance	47.8 ± 3.4 Mly (14.66 ± 1.04 Mpc)[1]
Group or cluster	RR 140
Apparent magnitude (V)	11.5[1]
Characteristics
Type	SB(s)cd[1]
Size	~56,500 ly (17.31 kpc) (estimated)[1]
Apparent size (V)	3.6′ × 2.7′[1]
Other designations
ESO 557- G 013, RR 140b, IRAS 06436-1809, 2MASS J06455276-1812374, MCG -03-18-002, PGC 19562[1]

Close

NGC 2283 forms a physical pair with galaxy IC 2171, collectively named RR 140, with an optical separation of 1593″ between them.^[3]

SIMBAD lists NGC 2283 as an active galaxy nucleus candidate.^[4]

One supernova has been observed in NGC 2283: SN 2023axu (Type II, mag. 15.6404) was discovered by the Distance Less Than 40 Mpc Survey (DLT40) on 28 January 2023.^[5]