Sorting Out the Period of XY Cassiopeiae
Volume 15 number 1 (1986)
- James D. Fahn
- Maria Mitchell Observatory
Abstract
A survey of Harvard College Observatory and Maria Mitchell Observatory plates was undertaken to clear up confusion surrounding the period of the 10th magnitude Cepheid, XY Cassiopeiae. New elements indicate a probable decrease in the period but do not confirm other period changes referred to in earlier studies.