A growing number of close binary stars are being discovered among
central stars of planetary nebulae. Recent and ongoing surveys are
finding new systems and contributing to our knowledge of the evolution
of close binary systems. The push to find more systems was largely based
on early discoveries which suggested that 10%–15% of all central
stars are close binaries. One goal of this series of papers is
confirmation and classification of these systems as close binaries and
determination of binary system parameters. Here we provide time-resolved
multi-wavelength photometry of the central star of Abell 65 as well as
further analysis of the nebula and discussion of possible
binary–nebula connections. Our results for Abell 65 confirm recent
work showing that it has a close, cool binary companion, though several
of our model parameters disagree with the recently published values.
With our longer time baseline of photometric observations from 1989 to
2009 we also provide a more precise orbital period of 1.0037577 days.