Department of Astronomy,
University of Toronto, Toronto, Canada M5S 1A7
Ottawa Center, Royal
Astronomical Society of Canada
Dwarf Cepheids are
pulsating variable stars with periods of 1 to 6 hours and amplitudes of 0.3m to
1.0m. Visual observers can therefore follow them through one or more cycles on
a single night, and see the results of their observations almost immediately.
Such observations are useful in studies of the period changes in these stars,
which in turn can shed some light on the evolutionary status of the stars. As
an example, some recent observations of CY Aqr are analyzed and discussed.