NGC 3443

NGC 3443 is a spiral galaxy in the constellation of Leo. Its velocity with respect to the cosmic microwave background is 1468 ± 24 km/s, which corresponds to a Hubble distance of 21.66 ± 1.56 Mpc (~70.6 million light-years).^[1] It was discovered by American astronomer Lewis Swift on April 24, 1887.

NGC 3443
NGC 3443 imaged by Legacy Surveys
Observation data (J2000 epoch)
Constellation	Leo
Right ascension	10h 53m 00.1481s[1]
Declination	+17° 34′ 26.497″[1]
Redshift	0.003776[1]
Heliocentric radial velocity	1132 ± 1 km/s[1]
Distance	70.6 ± 5.1 Mly (21.66 ± 1.56 Mpc)[1]
Apparent magnitude (V)	13.1[1]
Characteristics
Type	SAd[1]
Size	~68,000 ly (20.8 kpc) (estimated)[1]
Apparent size (V)	2.8′ × 1.4′[1]
Other designations
2MASX J10530011+1734250, UGC 6000, MCG +03-28-025, PGC 32671, CGCG 095-056[1]

One supernova has been observed in NGC 3443: SN 2024ehs (Type II, mag. 18.098) was discovered by ATLAS on March 15, 2024.^[2]

NGC 3370 Group

According to A.M. Garcia, the galaxy NGC 3443 is a member of the NGC 3370 group (also known as LGG 219) that includes NGC 3370, NGC 3454, NGC 3455, and UGC 5945.^[3]

See also

• List of NGC objects (3001–4000)