APOD
Astronomy Picture of the Day
Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
Betelgeuse, Betelgeuse, Betelgeuse
Explanation: Betelgeuse (sounds a lot like “beetle juice”), a red supergiant star about 600 lightyears distant, is shown here in this Hubble Space Telescope image which represents the first direct picture of the surface of a star other than the Sun . While Betelgeuse is cooler than the Sun, it is more massive and over 1000 times larger - if placed at the center of our Solar System , it would extend past the orbit of Jupiter . This image reveals a bright, as yet unexplained hotspot on its surface. Betelgeuse is also known as Alpha Orionis, one of the brightest stars in the familar constellation of Orion , the Hunter. Like many star names , Betelgeuse is Arabic in origin. It is derived from a phrase which refers to the hunter's shoulder or armpit, the general area occupied by this star in drawings of the figure in the constellation . As a massive red supergiant, it is nearing the end of its life and will soon become a supernova .
| Date | January 22, 1996 |
|---|---|
| Credit | Credit: A. Dupree (CfA), R. Gilliland (STScI), NASA, ESA |
| Authors & editors: | Robert Nemiroff (MTU) & Jerry Bonnell (UMCP) |
| A service of: |
ASD at NASA / GSFC, NASA Science Activation & Michigan Tech. U. |



