  We introduce the Lee Sang Gak Telescope (LSGT), a remotely operated, robotic
0.43-meter telescope. The telescope was installed at the Siding Spring
Observatory, Australia, in 2014 October, to secure regular and exclusive access
to the dark sky and excellent atmospheric conditions in the southern hemisphere
from the Seoul National University (SNU) campus. Here, we describe the LSGT
system and its performance, present example images from early observations, and
discuss a future plan to upgrade the system. The use of the telescope includes
(i) long-term monitoring observations of nearby galaxies, active galactic
nuclei, and supernovae; (ii) rapid follow-up observations of transients such as
gamma-ray bursts and gravitational wave sources; and (iii) observations for
educational activities at SNU. Based on observations performed so far, we find
that the telescope is capable of providing images to a depth of R=21.5 mag
(point source detection) at 5-sigma with 15 min total integration time under
good observing conditions.
