HR 211 From Maple Observatory and Hipparcos

Abstract

Starting in October 1993, HR 211 was observed photoelectrically in V on 76 nights over 5 years. The complete light curve and the power spectrum reveal a period close to a month with a possible long-term variability present. This is compares with the Hipparcos wide-band photometry, which runs from December, 1989, to February, 1993, and consists of 68 observations. For these, a period search suggests variability on a time-scale of about a month, with no long period apparent. An attempt is made to explain this and other dissimilarities.