Here's a breakdown:

* Rigel: A blue supergiant star, about 78 times the mass of the Sun and 79 times the Sun's radius. It's also significantly more luminous, shining with the power of about 120,000 Suns.

* Sun: Our own star, a yellow dwarf.

To put it simply, Rigel is a colossal star compared to the Sun. Imagine the Sun as a basketball; Rigel would be about the size of a large house!