Perfect for beginning stargazers, this tabletop reflector telescope is not a toy! With its substantial, 100mm (3.9") aperture parabolic glass primary mirror boasting a 400mm focal length, the compact Orion SkyScanner 100mm TableTop Reflector telescope will amaze you and your family with gorgeous, detailed views of the night sky. With this capable reflector, you can study the Moon's cratered surface in detail, exploring highland mountains and vast, planar lunar "seas" of dark material. Bright planets like Jupiter, Saturn, and Mars shine brightly in the SkyScanner 100, even when viewing from urban locations. And the pint-sized SkyScanner 100 can gather enough light for views of open and globular star clusters, bright cloudy nebulas, and even a few distant galaxies. Set the compact SkyScanner 100 on table in the back yard, or even on the hood of your car in the backcountry, and comfortably view the heavens to your heart's content. No table available? You can easily attach the SkyScanner 100's altazimuth base to any field tripod equipped with a standard 3/8" threaded post. Thanks to its small stature, the SkyScanner 100 makes a great grab-and-go telescope for road trip adventures, camp-outs, and just carrying to the local park. The SkyScanner features a rack-and-pinion focuser that makes it easy to dial in sharp focus. The included 4-element 20mm and 10mm eyepieces provide 20x and 40x magnifying power, respectively. Both eyepieces have threaded barrels to allow use of Orion filters, including the glare-reducing Moon filter that comes with the telescope. The EZ Finder II red dot scope helps with finding your target object. You also get Orion's MoonMap 260 - a wonderful reference to help you identify some 260 lunar features as you observe them. An excellent, portable, easy-to-use telescope at an affordable price, the Orion SkyScanner 100mm TableTop Reflector is an ideal beginner's telescope capable of providing hours of family fun exploring the cosmos.Weighs just 5.3 lbs fully assembled, and stands 16" tall when aimed at the zenith. Includes 20mm (for 20x power) and 10mm (for 40x power) 4-element eyepieces, EZ Finder II aiming device, glare-reducing Moon filter, and Orion's MoonMap 260. The SkyScanner's intuitive swivel base makes maneuvering and pointing the telescope easy for everyone in the family. Ample 100mm (3.9") parabolic primary mirror optics drink in faint light to reveal lunar craters, planets, and deep-space nebulas in sharp detail. Ideal entry-level reflector telescope sporting big optics, hassle-free operation, and grab-and-go portability.Number of Batteries: 1 Lithium Ion batteries required. Item Weight: 6.2 Pounds. Finderscope: Reflex. Focus Type: Manual Focus. Product Dimensions: 9.5"D x 9.5"W x 14"H. Telescope Mount Description: Altazimuth Mount. Objective Lens Diameter: 100 Millimeters. Eye Piece Lens Description: Plossl. Optical Tube Length: 15.7 Inches. Brand: Orion. Manufacturer: Optronic Technologies, Inc. Date First Available: May 28, 2013. Is Discontinued By Manufacturer: No. Best Sellers Rank: #602 in Camera & Photo Products. Customer Reviews: 4.5 out of 5 stars 741 ratings 4.5 out of 5 stars. Batteries: 1 Lithium Ion batteries required. Item model number: 10012. : B00D05BIIU. Item Weight: 6.2 pounds. Product Dimensions: 9.5 x 9.5 x 14 inches.