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We Observe a binary star system and find that the continuous spectra of stars A and...

We Observe a binary star system and find that the continuous spectra of stars A and B peak at 390 m, and at 640 nm respectively. a. what is the surface temperature of star A and star B? b. both stars are on the main sequence. which star is more massive? c. the stars are on circular orbits around a common center of mass, the orbital period is 6 months. which star moves faster?

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