SN 1939C

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SN 1939C
Other designations{{{names}}}
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Spectral class{{{class}}}
Date17 July 1939[1]
Right ascension20:34:23.0 [2]
HostFireworks Galaxy (NGC 6946)[1]
Peak apparent magnitude13.0[2]

SN 1939C was a supernova in the Fireworks Galaxy, also known as NGC 6946. First discovered by Fritz Zwicky on 17 July 1939,[1] with a right ascension of 20:34:23.0 and a declination of +60:09:37.3, it lies 215"W and 24"N from the center of its galaxy.[1] It peaked at a magnitude of 13.0 mag.[2]


  1. 1.0 1.1 1.2 1.3 1.4 Frommert, Hartmut; Kronberg, Christine (9 March 2009), NGC 6946,, retrieved 31 August 2011
  2. 2.0 2.1 2.2 2.3 Schlegel, Eric (1994), "X-ray Emission from the Historical Supernovae in the Spiral Galaxy NGC 6946: SN 1980K and SN 1968D Recovered?", The Astronomical Journal 108 (5): 1893–1898, Bibcode 1994AJ....108.1893S, doi:10.1086/117202,, retrieved 31 August 2011

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