Mu Cephei Trivia Questions

As a red supergiant, Mu Cephei's temperature is roughly 3,500 K, much cooler than the Sun's 5,778 K, giving it its red glow.

William Herschel named it the Garnet Star in the 18th century because of its striking reddish hue, caused by its cool temperature.

It's a semiregular variable star, with brightness fluctuations over years due to pulsations and dust, but not strictly periodic.

Mu Cephei is in Cepheus, not Cassiopeia. It's near the border, but its host constellation is the king, not the queen.

Despite its immense size, Mu Cephei appears dim because it's about 2,400 light-years away; it's visible but not among the brightest.

Mu Cephei is a red supergiant with a radius around 1,000 times that of the Sun, easily reaching Jupiter if centered on the Sun.

Mu Cephei is a single star, not a binary. The myth likely arises from confusion with other variable stars that have companions.

While it will end in a supernova, it's likely within tens to hundreds of thousands of years, not a million—still soon astronomically.