The axes on a Hertzsprung-Russell (H-R)diagram represent

Question

Quizplus · Accepted Answer

The H-R diagram plots the luminosity (brightness) of stars against their surface temperature. Therefore, the correct answer is B. Choice A is not correct because while mass is related to luminosity, it is not plotted on the H-R diagram. Choice C is incorrect because apparent brightness is a measure of how bright a star appears from Earth, which is not used in the construction of the H-R diagram. Choice D is incorrect because radius is also not directly plotted on the H-R diagram.

The Axes on a Hertzsprung-Russell (H-R)diagram Represent