Mu

Its story

Mu Herculis is a near neighbour, just 27 light-years away — a yellow subgiant cousin to the Sun, slightly older and more swollen. It is a multiple system: a pair of red dwarfs accompany it in a slow orbit, visible even through modest telescopes as two reddish sparks beside the primary. A domestic arrangement, on a stellar scale, that invites the thought of three suns lifting on the same dawn.