The Hale Telescope is a large optical telescope located at the Palomar Observatory in California. Completed in 1948, it has a primary mirror that measures 200 inches (5.1 meters) in diameter, making it one of the largest telescopes in the world. The telescope was named after the astronomer George Ellery Hale, who played a significant role in its construction. The Hale Telescope has contributed to many important discoveries in astronomy, including studies of distant galaxies and the solar system. Its advanced design allows for high-resolution imaging, enabling astronomers to observe celestial objects in great detail. The telescope remains a vital tool for research in the field of astrophysics.