  We study the capability of the MAGIC telescope to observe under moderate
moonlight. TeV gamma-ray signals from the Crab nebula were detected with the
MAGIC telescope during periods when the Moon was above the horizon and during
twilight. This was accomplished by increasing the trigger discriminator
thresholds. No change is necessary in the high voltage settings since the
camera PMTs were especially designed to avoid high currents. We characterize
the telescope performance by studying the effect of the moonlight on the
gamma-ray detection efficiency and sensitivity, as well as on the energy
threshold.
