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The Decreasing Periods of R-Aquilae and R-Hydrae

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Michael S. Davis

Astronomy Department, Villanova University, Villanova, PA 19085




Times of maximum light of the long period variables R Aquilae and R Hydrae have been fitted to parabolic elements corresponding to constantly decreasing periods. The fit is satisfactory for R Aquilae but not for R Hydrae.


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