Leiden Observatory is one of the oldest astronomical research institutes in the world, founded in 1633 in Leiden, Netherlands. It is part of Leiden University and has a rich history of contributions to the field of astronomy, including the discovery of several celestial objects and the development of important astronomical techniques. The observatory is known for its extensive collection of historical astronomical instruments and its modern research facilities. It focuses on various areas of astronomy, including astrophysics, planetary science, and cosmology. The observatory also offers educational programs and public outreach to promote interest in astronomy.