Exam (elaborations)
BIG BANG GIZMOS-HUBBLE'S LAW WITH VERIFIED SOLUTIONS ALREADY GRADED A+
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Absolute brightness the intrinsic brightness of a star that depends only on its luminosity. Apparent brightness how bright a star appears to an observer on Earth. Mpc Astronomers describe the apparent brightness of a star as the ratio between the brightness of the star to the brigh...
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