Monday
March 30, 2015

Homework Help: astronomy

Posted by keitanako on Wednesday, May 14, 2014 at 7:54am.

Hydrogen accounts for 71% of the Sun's mass today. If only one tenth of that Hydrogen burns into Helium, how long could the Sun keep shining at its present luminosity? Note that Hydrogen fusion has an efficiency of about 0.7%

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