NGC 3443 explained

NGC 3443
Constellation Name:	Leo
Epoch:	J2000
Type:	SAd^[1]
Dist Ly:	NaNMpc
Z:	0.003776
H Radial V:	1132 ± 1 km/s
Appmag V:	13.1
Size V:	2.8' x 1.4'
Size:	~20.8kpc (estimated)

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). It was discovered by American astronomer Lewis Swift on April 24, 1887.

One supernova has been observed in NGC 3443: SN 2024ehs (type II, mag. 18.1).^[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)

Notes and References

1. Web site: NASA/IPAC Extragalactic Database . Results for NGC 3443 . July 29, 2024.
2. https://www.wis-tns.org/object/2024ehs Transient Name Server entry for SN 2024ehs.
3. 1993A&AS..100...47G . General study of group membership. II. Determination of nearby groups . Garcia . A. M. . Astronomy and Astrophysics Supplement Series . 1993 . 100 . 47 .