images

Size comparison : Sirius B, Earth and Sun

by

M.Carroll/Novapix

Reference

a-eto01-00014

Date

2008-12-07

Sirius B, a white dwarf star just 8.6 light-years from Earth, is a little larger than our world, and far smaller than our Sun. It orbits the brightest star in Earth's sky, Sirius A, at a distance equivalent to the distance from our Sun to Uranus. While Sirius B is about the size of Earth, it has nearly as much mass as our our Sun.