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The 1981 Lightcurve of the Unique Cepheid HR7308

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John R. Percy

R. Paul Ford

Department of Astronomy, University of Toronto, Toronto, Canada M5S 1A7




The photoelectric light curve of HR 7308 in mid-1981 is given and discussed. The total amplitude is 0.385 magnitude, the largest value yet observed, and the light curve is non-sinusoidal. The observations support a modulation period of 1210 days, but they do not support a model based on the beating of two close periods.


Link to ADS abstract, article and citation information

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