SN 1939C was a supernova in the

Fireworks Galaxy NGC 6946, sometimes referred to as the Fireworks Galaxy, is a face-on intermediate spiral galaxy with a small bright nucleus, whose location in the sky straddles the boundary between the northern constellations of Cepheus and Cygnus. Its dis ...

first discovered by

Fritz Zwicky Fritz Zwicky (; ; February 14, 1898 – February 8, 1974) was a Swiss astronomer. He worked most of his life at the California Institute of Technology in the United States of America, where he made many important contributions in theoretical and ...

on 17 July 1939. With a

right ascension Right ascension (abbreviated RA; symbol ) is the angular distance of a particular point measured eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point in question above the earth. When paired w ...

of 20:34:23.0 and a

declination In astronomy, declination (abbreviated dec; symbol ''δ'') is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle. Declination's angle is measured north or south of the ...

of +60:09:37.3, it lies 215"W and 24"N away from the center of the Fireworks Galaxy. It peaked at a magnitude of 13.0.

References

External links

Light curve
on th
Open Supernova Catalog
19390717 Supernovae Cepheus (constellation) {{var-star-stub