SN 1939C
 A light curve for SN 1939C, adapted from Schaefer (1996).[1] The red arrows show upper limits. | |
| Event type | Supernova  |
|---|---|
| SN.I: | |
| Date | 17 July 1939[2] |
| Constellation | Cepheus[2] |
| Right ascension | 20:34:23.0 [3] |
| Declination | +60:09:37.3[3] |
| Host | Fireworks Galaxy (NGC 6946)[2] |
| Peak apparent magnitude | 13.0[3] |
| Other designations | SN 1939C, 2MASS J20342405+6009299, GPM 308.600512+60.158384, Gaia DR2 2194501518284091008 |
SN 1939C was a supernova in the Fireworks Galaxy discovered by Fritz Zwicky on 17 July 1939.[4][2] 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.[2] It was found at magnitude 14.4, after it had peaked, and was estimated to have been as bright as magnitude 13.[3]
References
[edit]- ^ Schaefer, Bradley E. (June 1996). "Volume-limited Samples of Supernovae". Astrophysical Journal. 464: 404–411. doi:10.1086/177331. Retrieved 18 May 2025.
- ^ a b c d e Frommert, Hartmut; Kronberg, Christine (9 March 2009), NGC 6946, retrieved 31 August 2011
- ^ a b c d 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
[edit]- 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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