Celestron Astromaster 90AZ Telescope produces bright, clear images of the Moon and planets. With this Astromaster telescope it is easy to see the moons of Jupiter and the rings of Saturn. Features - Quick and easy no-tool setup - Permanently mounted StarPointer - Erect image optics - Quick release dovetail attachment - Pan handle Alt-Az control with clutch - for smooth and accurate pointing - Rugged pre-assembled tripod with 1.25\" steel tube legs - All coated glass optics - Deluxe accessory tray -The Sky Level 1 planetarium software with 10,000 object database and enhanced images Specifications Optical Design: Refractor Aperture: 90 mm (3.54 in) Focal Length: 1000 mm (39.37 in) Focal Ratio: 11.11 Eyepiece 1: 20 mm (0.79 in) Magnification 1: 50 x Eyepiece 2: 10 mm (0.39 in) Magnification 2: 100 x Mount: Altazimuth Optical Coatings: Multi Coated Weight: 9.07 kg (20 lb)