About The Mus
The Mus is an epic variable star. It sits in the constellation Mus, shines at apparent magnitude 5.44 and has spectral type WC6 + O9.5I.
Its spectrum reads WC6 + O9.5I — a Wolf-Rayet star: a stellar monster shedding its own outer layers in a ferocious wind, on its way to a supernova.