...and a few more things...
random stuff from internet and other places
Saturday, July 07, 2007
How bright is a Supernova
Supernova 1994D in
Galaxy NGC 4526
. The distance is about 55 million light-years. Compare the luminosity of the galaxy core and the supernova. Only a supernova can radiate energy like billions stars.
Source:
http://www.spacetelescope.org
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