Celestron Advanced C9 1/4-SGT 9.3/235mm Catadioptric Telescope Kit Fully computerized GoTo telescope with NexStar hand controller containing a 40,000-object database Big 235mm (9.25") Schmidt-Cassegrain optics with 2350mm focal length (f/10) StarBright XLT high-performance optical coatings for enhanced image brightness Computerized CG-5 equatorial mount has dual DC servo motors, autoguider and auxilliary ports Includes 25mm (94x) eyepiece, 6x30 finder scope, star diagonal, and 2-year limited warranty