SN 1975A - AbsoluteAstronomy.com

SN 1975A a supernova

Supernova

A supernova is a stellar explosion that is more energetic than a nova. It is pronounced with the plural supernovae or supernovas. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months...

located in NGC 2207/IC 2163. http://www.osti.gov/energycitations/product.biblio.jsp?osti_id=7346853

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