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nursecupcake nursecupcake
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A week ago

Consider two stars of the same mass: star 1 has just moved on to the main sequence, and star 2 is about to leave it. How are these two stars different?



Star 2 has more helium in its core and a hotter surface.



Star 2 has more helium in its core and a cooler surface.



Star 1 is more luminous and has a hotter surface.



Star 1 is more luminous and has a cooler surface.

Textbook 
ASTRO

ASTRO


Edition: 3rd
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skdiveelisskdiveelis
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A week ago
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I appreciate what you did here, answered it right Smiling Face with Open Mouth
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