Illustration comparing the size of four small stars. The largest of the four is Sirus A, a blue-white star roughly times the size of the Sun. The

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Illustration comparing the size of four small stars. The largest of the four is Sirus A, a blue-white star roughly times the size of the Sun. The yellow one is the Sun, a main sequence dwarf with a diameter of million km (865, 000 miles). The red star is Proxima Centauri, a red dwarf and of the closest star to the Sun. At 200, 000 km (125, 000) across it is only 1/7 the size of the Sun, not much larger than the planet Jupiter. Lastly, the small white star is Sirius B, a white dwarf. It is only 8 per cent of the size of the Sun, smaller even than the planet Earth.

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Size: 6000px × 4000px
Photo credit: © MARK GARLICK/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: centauri, comparison, horizontal, proxima, scale, schematic, sirius, size, space, star, stars, stellar, sun