Outfitted with a large-aperture/long focal length optical tube assembly (OTA) and their updated computer-controlled motorized EQ mount, Celestron's CGEM II 925 9.25" f/10 Schmidt-Cassegrain Telescope gives you a complete observational rig for making detailed observations of the Moon and planets within our solar system: plus the ability to reach into deep sky to discover galaxies, nebulae, clusters, and stars. Complementing the aperture and focal length is the proprietary StarBright XLT multi-coating system. With this system, light transmission is increased throughout the entire optical path with anti-reflection multi-coated lenses, highly reflective multi-coated mirrors, and Crown optical glass elements. While the focal ratio is a relatively slow f/10, the scope's precision tracking system allows it to be a competent astrophotography/astroimaging platform.
The CGEM II mount is engineered to carry up to a 40-pound payload and is outfitted with high-torque dual DC servo motors, offering stargazers the ability to smoothly and accurately slew and track heavier OTAs such as the one provided here. Its dual dovetail saddle allows it to accept the larger Losmandy-style plate used on the OTA, while also being able to accept other OTAs with the smaller Vixen-style plate. Celestron also improves its usage by adding compatibility with their SkySync GPS unit for a higher-level of precision during set up and alignment. To provide a stable platform for the mount and your OTA, a heavy-duty stainless steel tripod is included that sports large 2" legs and an accessory tray that doubles as a stabilizer.
The brains of the CGEM II is the NexStar+ computer controller. Equipped with a database of 40,000 objects, including the planets, stars, nebulae, galaxies, and the complete Messier catalog, it can also be programmed with up 100 custom user-defined objects and filters added for custom object lists. Its intuitive menu-driven user interface puts the power to observe the heavens with nine slew speeds and three tracking rates, plus anti-backlash compensation and Permanent Periodic Error Correction (PPEC) for smoother movements in the motors and improved tracking over time. Features such as guided tours, extended information on 200 popular objects, and multiple alignment options, make the NexStar+ controller easy to use and invaluable to new users and experienced stargazers.