SN 1940B was a supernova discovered on 5 May 1940 in the galaxy NGC 4725 in Coma Berenices.[1] It had a magnitude of 12.8[2] and became the first observed type II supernova.[3][clarification needed]
SN 1940B is one of the five supernovae discovered in 1940, the other being SN 1940A, SN 1940C, SN 1940D and SN 1940E.
References
- ^ Barbon, R. (January 1978), "Supernovae in the Coma cluster of galaxies", Astronomical Journal, 83: 13–19, Bibcode:1978AJ.....83...13B, doi:10.1086/112170.
- ^ "List of Supernovae". IAU Central Bureau for Astronomical Telegrams. Retrieved 12 December 2016.
- ^ Albert G. Petschek, ed. (2012). Supernovae. Springer Science & Business Media. p. 60. ISBN 978-1461232865.
External links
- Light curve Archived 2017-10-23 at the Wayback Machine on the Open Supernova Catalog Archived 2016-03-03 at the Wayback Machine
- SN 1940B at SIMBAD
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