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Alamak, Almaak, Gamma1,2 Andromedae, 57 Andromedae

In the east of Andromeda, towards the hero Perseus, is one of the sky's most famous multiple systems. Two close bright stars, one blue and one yellow-orange, converged with one another to meet in 2012, and are now separating again. Meanwhile, a third component circles these two along a decades-long orbit.


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