Astronomy:SN 1940B

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Short description: Supernova of 1940 in constellation Coma Berenices
SN 1940B
A light curve for SN 1940B, plotted from data available in the Open Supernova Catalog[1]
Date5 May 1940
ConstellationComa Berenices
Right ascension 12h 50m 33.0s
Declination+25° 32′ 12″
Peak apparent magnitude12.8

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. doi:10.3847/1538-4357/835/1/64. Bibcode2017ApJ...835...64G. 
  2. Barbon, R. (January 1978), "Supernovae in the Coma cluster of galaxies", Astronomical Journal 83: 13–19, doi:10.1086/112170, Bibcode1978AJ.....83...13B. 
  3. "List of Supernovae". IAU Central Bureau for Astronomical Telegrams. http://www.cbat.eps.harvard.edu/lists/Supernovae.html. Retrieved 12 December 2016. 
  4. Albert G. Petschek, ed (2012). Supernovae. Springer Science & Business Media. p. 60. ISBN 978-1461232865.