Rigel is much larger than our Sun. It is 78 times the Sun's radius, with a diameter of more than 100 million kilometers. Rigel is 778 light-years from Earth in Orion. Because it is near the equator, Rigel is seen from Earth as a small, bluish circle on clear nights from both hemispheres.
Rigel pulsates. The color of this star is bluish-white, hotter than a star with a yellow color. It will use its energy quickly. The Sun uses the same gases as Rigel; hydrogen and helium make it shine. When Rigel loses its fuel inside the very hot core, it will blow up into the red supergiant stage of its life and explode in a supernova. A black hole or a pulsar might be left.
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