Quote:
Originally Posted by Spanrz
Phenomenal stuff... OK, I gotta ask the mathematical question.
How long ago (years), did this supernova actually happen? (How many lights years is it away from us?)
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If I understand it
http://nedwww.ipac.caltech.edu/cgi-b...erivedValues_0
puts NCG7083 somewhere between 41 and 44 Megaparsecs. A parsec is about 3.26 light years so averaging that is about 138 million years ago.