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Period Test for AA Serpentis

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Nina Eisenman

Maria Mitchell Observatory, Nantucket, MA 02254




The Cepheid variable star AA Serpentis was studied on 598 Maria Mitchell Observatory plates. The new data were checked for deviations from the previously assigned period of 17.1412 days. The period remains the sam, 17.14120 days +/- 0.00004, but a new epoch is offered.


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