This glowing red supergiant is a semi-regular variable star, with its brightness ranging from 0.4mag to 1.3mag in a period of approximately 5.7 years. However, it appears more orange in color. Betelgeuse is one of the largest stars visible to the naked eye. If it were located at the position of the Sun, its outer edge would extend all the way to the asteroid belt. It is located at a distance of 500-600 light-years.