http://apod.nasa.gov/apod/ap100106.html
The APOD from January 6th shows the surface of the star Betelgeuse. Betelgeuse is one of the largest known stars, and if it were located in our solar system, its surface would extend to the area between Mars and Jupiter, fully engulfing the four terrestrial planets. The image is the only picture of a star where it is more than a point of light that I have seen, excluding the Sun of course, and the two bright patches are thought to be areas of convection and are hotter than the areas around them, but still cooler than the average surface of the sun.
Monday, December 14, 2009
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