SN 1940B

SN 1940B

A light curve for SN 1940B, plotted from data available in the Open Supernova Catalog [1]
Event type	Supernova
SN.IIP
Date	5 May 1940
Constellation	Coma Berenices
Right ascension	12h 50m 33.0s
Declination	+25° 32′ 12″
Peak apparent magnitude	12.8

SN 1940B was a supernova discovered on 5 May 1940 in the galaxy NGC 4725 in Coma Berenices. ^[2] It had a magnitude of 12.8 ^[3] and became the first observed type II supernova. ^{[4] [ 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

1. Guillochon, James; Parrent, Jerod; Kelley, Luke Zoltan; Margutti, Raffaella (January 2017). "An Open Catalog for Supernova Data". The Astrophysical Journal. 835 (1): 64. arXiv: 1605.01054 . Bibcode:2017ApJ...835...64G. doi: 10.3847/1538-4357/835/1/64 .
2. Barbon, R. (January 1978), "Supernovae in the Coma cluster of galaxies", Astronomical Journal, 83: 13–19, Bibcode:1978AJ.....83...13B, doi:10.1086/112170.
3. "List of Supernovae". IAU Central Bureau for Astronomical Telegrams. Retrieved 12 December 2016.
4. 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