Betelgeuse: the shrinking star
JUN 22, 2009
DOI: 10.1063/PT.5.023447
Science News : Betelgeuse , one of the brightest stars visible to the naked eye, has shrunk in diameter by more than 15 percent since 1993.The star, a red supergiant, has a radius exceeding the distance between the sun and Jupiter. The shrinkage corresponds to the star contracting by a distance equal to that between Venus and the sun, researchers reported June 9 at an American Astronomical Society meeting and in the June 1 Astrophysical Journal Letters . Related Link A systematic change with time in the size of Betelgeuse
© 2009 American Institute of Physics
