Physics and Astronomy
Dept., Macalaster College, St. Paul, MN 55105
The B3-type eclipsing
binary has a β Lyrae-type light
curve of small amplitude. Betwen August 3 and November 24, 1978, 133
photoelectric observations of AH Cephei were obtained. A time of minimum
derived from the mean light curve, JD (hel.) = 2442779.813 ± 0.011 day,
indicates the period may still be increasing.