Image, Hubble, NASA/STscS
Galaxy M81
Constellation Ursa Major
Discovered 1993 my amateur astronomer Francisco Garcia Diaz using a 10" Newtonian Telescope
Distance 11 million light years
SN 1993J was a binary system until one of the stars drew enough mass off the other it exploded.
Image, Hubble, NASA/STscS
Galaxy M81
Constellation Ursa Major
Discovered 1993 my amateur astronomer Francisco Garcia Diaz using a 10" Newtonian Telescope
Distance 11 million light years
SN 1993J was a binary system until one of the stars drew enough mass off the other it exploded.