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M66 is a spiral galaxy in the constellation of Leo, closely associated with two other galaxies M65 and NGC3628. Together these are known as the 'Leo Triplet' and they are actually relatively close to each other in space. Compared to M65, M66 is much bl;uer, especially in its arms, as a consequence of much new star formation.

M66

 

M66 is a spiral galaxy in the constellation of Leo.