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Astronomy PHY 150 Final Exam Questions with correct answers
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Astronomy PHY 150 Final Exam Questions with correct answers Stars usually form from the collapse of what astronomical objects? - Molecular Clouds While star formation often occurs in diffuse nebulae, it rarely does so in emission nebulae. Why? - gas and dust are blown away by the bright star(s) that created the emission nebula The presence of what element distinguishes high-mass brown dwarfs from low-mass stars? - Lithium We use the Period-Luminosity relation to find distances to which of the following? - Cephid variable stars and RR Lyrae Stars
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