  Beating the Earth's day-night cycle is mandatory for long and continuous
time-series photometry and had been achieved with either large ground-based
networks of observatories at different geographic longitudes or when conducted
from space. A third possibility is offered by a polar location with
astronomically-qualified site characteristics. Aims. In this paper, we present
the first scientific stellar time-series optical photometry from Dome C in
Antarctica and analyze approximately 13,000 CCD frames taken in July 2007. We
conclude that high-precision CCD photometry with exceptional time coverage and
cadence can be obtained at Dome C in Antarctica and be successfully used for
time-series astrophysics.
