Which is the nearest supergiant star to Earth?

1 Answer
Mar 12, 2016

Probably #alpha# UMi Aa, the yellow supergiant of the stars forming the multiple star we commonly know as Polaris.


The nearest supergiants include Betelgeuse and Antares, but the closest seems to be the cepheid variable yello supergiant which is the largest star in the multiple star we know as Polaris.

A popular estimate of its distance was #434# light years, but it may actually be much closer. The most recent estimate seems to be about #346# light years.