SN 1993J
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SN 1993J was a supernova in Bode's Galaxy. It was discovered on 28 March 1993 by amateur astronomer Francisco Garcia Diaz in Lugo, Spain. At the time, it was the second-brightest Type II supernova obs
Artist's impression of supernova 1993J
Messier 81
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Messier 81 is a grand design spiral galaxy about 12 million light-years away in the constellation Ursa Major. It has a D25 isophotal diameter of 29.44 kiloparsecs.
SN 1993J
…SN 1993J was a supernova in Bode's Galaxy. It was discovered on 28 March 1993 by amateur astronomer Francisco Garcia Diaz in Lugo, Spain. At the time, it was the second-brightest Type II supernova…
The HST's view of M81, with its open star clusters, globular star clusters, and regions of fluorescent gas.
An infrared image of Messier 81 taken by the Spitzer Space Telescope. The blue colors represent stellar emission observed at 3.6 μm. The green colors represent 8 μm emission originating primarily from polycyclic aromatic hydrocarbons in the interstellar medium. The red colors represent 24 μm emission originating from heated dust in the interstellar medium.
M81 (left) and M82 (right). M82 is one of two galaxies strongly influenced gravitationally by M81. The other, NGC 3077, is located off the top edge of this image.
M81 with satellite galaxy Holmberg IX, shown top center-right.