title: DQ Herculis: Synchronous Photometry.
abstract: Synchronous signal averaging, applied to the photometry of the steller system DQ Herculis in order to study the 71.1-second pulsations discovered by Walker in 1956, yields a light curve which is a pure sinusoid, within the accuracy of measurement. The binary period is increasing, probably as a result of mass lost from the system.
authors.forename: R E
authors.initials: RE
authors.lastname: Nather
authors.forename: B
authors.initials: B
authors.lastname: Warner