NGC 1643

NGC1643 is a peculiar barred spiral galaxy in the constellation of Eridanus. Its velocity with respect to the cosmic microwave background is , which corresponds to a Hubble distance of . It was discovered by German-British astronomer William Herschel on 28 November 1786.

Supernovae

Two supernovae have been observed in NGC 1643:

• SN1995G (TypeIIn, mag. 15.5) was discovered by Robert Evans, J. Shobbrook, and S. Beaman, on 23 February 1995.
• SN1999et (TypeII, mag. 17.6) was discovered by E. Cappellaro on 4 November 1999.

See also

• List of NGC objects (1001–2000)

References

External links