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8.   Which variable stars have pulsation periods between 1.5 hours and 1.2 days?      A. Cepheid variables B. Nebulas C. Protostars D. RR Lyrae variables  
The stars that have pulsation periods between 1.5 hours and 1.2 days are RR Lyrae variables.
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biank1989|Points 238|
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Asked 1/14/2015 2:09:21 AM
Updated 1/14/2015 3:07:23 AM
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This answer has been confirmed as correct and helpful.
Edited by jeifunk [1/14/2015 3:07:22 AM], Confirmed by jeifunk [1/14/2015 3:07:23 AM]
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