EF Pegasi was observed photometrically during a superoutburst in 1991 October. Superhumps seen during these observations were best fit with a period of 2h .09. This period is used to determine a likely orbital period of 2h .05 and a mass ratio (M 2 /M 1 ) of 0.26. Distance estimates for EF Peg give values of 250 to 600 pc.
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Howell et al. (1993) studied this question.
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