Exam (elaborations)
ASTR 102 Test Questions & 100% Solutions (Verified Answers)
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globular clusters - older stars; all of the stars formed at the same time, but evolve differently depending on their mass How can globular clusters help find distances? - they contain standard candles like Cepheid variables How far away is the center of the Milky Way? - about 27,000 light years...
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