Question: SN 1939C was a supernova in the Fireworks Galaxy first discovered on 17 July 1939, by which Swiss astronomer, who worked most of his life at the California Institute of Technology?
Sentence (from "SN 1939C"): 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 the Fireworks Galaxy.
Relevant evidence: No