Thursday
March 26, 2015

Homework Help: science

Posted by mike on Monday, March 30, 2009 at 9:17pm.

if a white dwarf can exist only if its mass is less than 1.4 times the sun's mass, how can a star having 5 times the sun's mass end as a white dwarf?

&

what can astronomers learn about a star from its spectral lines?

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