SN 1993J was at a very similar distance, in M82's larger companion galaxy M81, and SN 1987A was much closer.
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Forming a striking pair in small telescopes with nearby spiral M81, M82 is being physically affected by its larger neighbor.
Messier | Charles Messier | Messier object | Messier 81 | Mark Messier | Messier marathon | Messier 99 | Messier 98 | Messier 96 | Messier 94 | Messier 93 | Messier 92 | Messier 91 | Messier 82 | Messier 73 | Messier 72 | Messier 69 | Messier 62 | Messier 54 | Messier 52 | Messier 47 | Messier 41 | Messier 38 | Messier 36 | Messier 32 | Messier 13 | Messier 110 | Messier 109 | Messier 107 | Messier 106 |