| Event type | Supernova  |
|---|---|
| SN.I: | |
| Date | 17 July 1939 |
| Constellation | Cepheus |
| Right ascension | 20:34:23.0 |
| Declination | +60:09:37.3 |
| Host | Fireworks Galaxy (NGC 6946) |
| Peak apparent magnitude | 13.0 |
| Other designations | SN 1939C, 2MASS J20342405+6009299, GPM 308.600512+60.158384, Gaia DR2 2194501518284091008 |
| [edit on Wikidata] | |
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
- ^ Frommert, Hartmut; Kronberg, Christine (9 March 2009), NGC 6946, retrieved 31 August 2011
- ^ 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.
- Strömgren, Elis (2 September 1939). "Circular No. 793". Central Bureau for Astronomical Telegrams. Observatory Copenhagen IAU. Retrieved 19 December 2024.
External links
- Light curve Archived 2017-12-22 at the Wayback Machine on the Open Supernova Catalog Archived 2016-03-03 at the Wayback Machine
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