Transcript for scene 21 of the video " The Incredible Experience vs Ice Age - part 2" by Rolf Witzsche  

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Sirius is twice as large as the Sun

The star Sirius, in turn, is twice as large as the Sun, and has a surface temperature of 9,900 degrees, almost twice that of the Sun. 

 

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Published by Cygni Communications Ltd. North Vancouver, BC, Canada - (C) in public domain - producer Rolf A. F. Witzsche