An rr lyrae star is identified in a globular cluster it is
An RR Lyrae star is identified in a globular cluster. It is 50 times fainter than a solar-mass main-sequence star 100 pc away. Calculate the distance to the globular cluster.
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in this discussion activity address the followingthe wars in korea and vietnam were the major proxy wars fought by the
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an rr lyrae star is identified in a globular cluster it is 50 times fainter than a solar-mass main-sequence star 100 pc
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