Capella what is it?

Capella is the brightest star in the constellation Auriga. It is also known as Alpha Aurigae. Capella is a binary star, consisting of two stars orbiting each other. The primary star, Capella A, is a yellow giant star about 10 times the size of the Sun. The secondary star, Capella B, is a red giant star about 5 times the size of the Sun. The two stars orbit each other every 104 days.

Capella is located about 42 light-years from Earth. It is the sixth-brightest star in the night sky. Capella is visible from both the Northern and Southern Hemispheres.

Capella has been known since ancient times. It was mentioned in the works of Homer, Virgil, and Ptolemy. Capella was also used by sailors as a navigational star.

Today, Capella is studied by astronomers to learn more about binary stars and stellar evolution. Capella is also a popular target for amateur astronomers.