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Biology, 10.12.2020 05:20 morganmsaylor3056

2. A Cepheid variable star has an apparent brightness of 85 and a period of 14.3 days. (This means the star is 85 times brighter than the Sun would appear ata distance of 1 Mpc.) About how far away is the star?

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2. A Cepheid variable star has an apparent brightness of 85 and a period of 14.3 days. (This means t...
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