The Schmidt-Cassegrain Telescope is a popular type of telescope known for its compact design and versatility. It combines a spherical primary mirror with a corrector plate, which helps to reduce optical aberrations. This design allows for a shorter tube length while maintaining a long focal length, making it easier to transport and set up. These telescopes are widely used for both amateur and professional astronomy. They are suitable for observing celestial objects like planets, stars, and galaxies, and can also be used for astrophotography. The Cassegrain design, named after the French astronomer Laurent Cassegrain, enhances light collection and image clarity.