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OpenStudy (anonymous):

Suppose two stars are located in region A of the H-R diagram. Star X appears much dimmer than Star Y from Earth. Which star is closest to Earth, and how do you know? http://prntscr.com/7cflqw

OpenStudy (anonymous):

Since star x is dimmer you know it must be further away than star y, star y has a higher apparent brightness. star y is closer to earth.

OpenStudy (anonymous):

Thanks!

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