PZ Aquilae: Period Changes in a Population II Cepheid

Volume 13 number 1 (1984)

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Derek Wallentinsen
Maria Mitchell Observatory,

Abstract

The photometric behavior of the galactic variable PZ Aquilae is examined during the fifty years 1934 - 1983. Using photographic observations from the Maria Mitchell Observatory, two intervals of constant period were found. The current period is 8.7546 days.