Molecular astrophysicist Markus Hammonds gives us this perspective on how the size of a dwarf star like Sirius B looks compared to Earth. Those dwarfs are really tiny. And pretty. [Luminous Red Nova]
More from Gizmodo
So... it would be considerably less dense, hence less massive. I wonder if there are many places out there where the Geocentrist model is actually correct, and the star orbits the planet.