Posted: Jan 04, 2017 2:47 pm
If the star is "in the main sequence" (Hertzprung Russell) then it's not (yet) a white dwarf. 
wikipedia
wikipedia
Lifeboat for the rational mind :D
http://www.rationalskepticism.org/
http://www.rationalskepticism.org/viewtopic.php?p=2509815#p2509815