Rigel is a hot supergiant star in the Milky Way Galaxy. It is classified as a blue supergiant. It is located in the constellation Orion. Many scientists believe that Rigel is the youngest star in the constellation. Rigel is much bigger than our star here in the solar system, the Sun at 78 times its radius and a diameter more than 100 million kilometers. Rigel lies 778 light-years from Earth in Orion. Because it is near the equator, Rigel is visible from Earth as a small, bluish circle on clear nights from both hemispheres.