Mu-2

Variable star

Its story

Mu-2 Crucis is the fainter companion of the Mu Crucis pair, one of the loveliest doubles in the Southern Cross. A blue B5 variable, its light oscillates slightly as it pulses through slow evolution. It lies 407 light-years away, almost in step with its twin Mu-1, forming a system separated by just 35 arc-seconds that any reasonable pair of binoculars resolves under southern hemisphere skies.

Constellation: Crux
Apparent magnitude: 5.08
Distance: 407.2 light years
Coordinates (J2000): RA 193.654° · Dec -57.169°
Catalogue: HIP 63005 · HD 112091

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