Celestron Astromaster 80AZ Short Refractor 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.Quick Overview:- 80mm short refractor telescope with fully coated glass optics and a lightweight frame.- Accessories include: two eyepieces (20mm and 10mm), erect image diagonal, and red dot finderscope.- Observe in no time with a quick and easy no-tool setup.- Pan handle Alt-Az control with clutch for smooth and accurate pointing.- Adjustable height tripod includes an accessory tray.SpecificationsOptical Design: RefractorAperture: 80mm Focal Length: 400mm Focal Ratio: f/5Focal Length of Eyepiece 1: 20mm Magnification of Eyepiece 1: 20xFocal Length of Eyepiece 2: 10mm Magnification of Eyepiece 2: 40xBarlow Lens: Not IncludedFinderscope: StarPointer red dot finderscopeStar Diagonal: Erect Image Diagonal - 1.25\"Optical Tube: AluminumHighest Useful Magnification: 189xLowest Useful Magnification: 11xLimiting Stellar Magnitude: 12Resolution (Rayleigh): 1.74 arc secondsResolution (Dawes): 1.45 arc secondsLight Gathering Power (Compared to human eye): 131xOptical Coating: Fully CoatedOptical Tube Length: 457.2mm (18\")Dovetail: CG-2 Dovetail bar Mount Type: Manual Alt AzimuthHeight adjustment range (includes mount and tripod): 812.8mm - 1295.4mm (32\" - 51\")Tripod Leg Diameter: 31.75mm (1.25\") steelAccessory Tray: YesTripod Weight: 7.6 lbs (3447.3 g)Slew Speeds: ManualDovetail Compatibility: CG-5 saddle plateSoftware: Starry Night Basic Edition | SkyPortal App