SN 1939C

SN 1939C
A light curve for SN 1939C, adapted from Schaefer (1996). The red arrows show upper limits.
Event typeSupernova Edit this on Wikidata
SN.I: Edit this on Wikidata
Date17 July 1939
ConstellationCepheus
Right ascension20:34:23.0
Declination+60:09:37.3
HostFireworks Galaxy (NGC 6946)
Peak apparent magnitude13.0
Other designationsSN 1939C, 2MASS J20342405+6009299, GPM 308.600512+60.158384, Gaia DR2 2194501518284091008
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SN 1939C was a supernova in the Fireworks Galaxy discovered by Fritz Zwicky on 17 July 1939. With a right ascension of 20:34:23.0 and a declination of +60:09:37.3, it was 215"W and 24"N away from the center of the Fireworks Galaxy. It was found at magnitude 14.4, after it had peaked, and was estimated to have been as bright as magnitude 13.

References

  1. ↑ Schaefer, Bradley E. (June 1996). "Volume-limited Samples of Supernovae". Astrophysical Journal. 464: 404–411. doi:10.1086/177331. Retrieved 18 May 2025.
  2. 1 2 3 4 5 Frommert, Hartmut; Kronberg, Christine (9 March 2009), NGC 6946, retrieved 31 August 2011
  3. 1 2 3 4 Schlegel, E. M. (1994). "X-Ray Emission from the Historical Supernovae in the Spiral Galaxy NGC 6946: SN 1980K and 1968D Recovered". The Astronomical Journal. 108: 1893. Bibcode:1994AJ....108.1893S. doi:10.1086/117202.
  4. ↑ Strömgren, Elis (2 September 1939). "Circular No. 793". Central Bureau for Astronomical Telegrams. Observatory Copenhagen IAU. Retrieved 19 December 2024.