Last Modified: 2012-01-31
Red is the coolest
Blue(hot) White Yellow Orange Red(cool)
I R O Y G B I V
developed in 1913 by Henry Harris Russell and Ejnar Hertzsprung
go in extreme upper left
1,000,000 L sun (1 million times the luminosity of the sun)
-10,000 L sun
You can still orbit.
You don't go past the event horizon.
bigger than the other stars
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