  We report on the photometric analysis of the poorly studied cataclysmic
variable in Ophiuchus 1RXS J174320.1-042953 (DDE 11). Results of the monitoring
with the Bradford Robotic Telescope (BRT) are presented, as well as the
time-resolved photometry obtained at Montecatini Astronomical Centre. The
long-term behavior of J1743-0429 shows it is a magnetic cataclysmic variable
(polar) with the large difference between the low and high states. The orbital
period obtained from our observations is 0.0866d, or 2.08hr, close to the lower
boundary of the period gap of cataclysmic variables.
