The bright face of our planet's Moon has been inspiring astronomers for centuries. Since the Moon is much closer to Earth than any other object in the night sky, views of its illuminated surface are amazingly detailed when observed through binoculars or a telescope. Intriguing craters, craggy mountains, and vast seas of ancient lava flows make for wonderful targets for backyard astronomers. With the affordable Orion Moon Map 260, you can easily identify, locate and learn about the many interesting features of Earth's only natural satellite. The Moon Map identifies over 260 of the most popular lunar surface features including craters, mountain ranges, valleys, riles, seas and more. Each feature is cross-referenced in the Moon Map's tables with its official name, size and a brief description. In addition to lunar landscape features, all successful spacecraft landing sites from US Apollo, Surveyor and Ranger Probe missions as well as Soviet Luna Probe missions are also clearly identified on the map. We've designed the Orion Moon Map 260 with versatility in mind. Both a correct-image and reversed, or mirror image view of the Moon are included on the map, so it can be used when observing the Moon with unaided eyes, binoculars; or any refractor, reflector, or Cass grain telescope. The map is conveniently laminated for use in almost any weather. Using the Moon Map 260 is easy. Simply find the reference number of the lunar feature you wish to identify on the map, and then look up its name using the map's numerical index. Conversely, if you wish to locate a specific named feature with your telescope or binoculars, use the map's numerical index to find the lunar feature's reference number, then locate the number and feature on the map. For ease of use, the reference numbers are roughly ordered from north to south (top to bottom).Includes both correct-image and reversed mirror image maps of the Moon for easy use with binoculars, unaided eyes, or any telescope. Identifies all successful landing sites from US and Soviet lunar missions. Conveniently laminated for use in almost any weather. Map identifies over 260 lunar features including craters, valleys, ancient lava flows, mountain ranges and more. The meticulously detailed Moon Map 260 is a must-have for any backyard astronomer.Item Weight: 0.05 Pounds. Finderscope: Reflex. Focus Type: Manual Focus. Objective Lens Diameter: 260 months. Brand: Orion. Manufacturer: Optronic Technologies, Inc. Date First Available: October 23, 2013. Is Discontinued By Manufacturer: No. Best Sellers Rank: #70 in Telescope Filters. Customer Reviews: 4.2 out of 5 stars 77 ratings 4.2 out of 5 stars. Item model number: 51919. : B00G4MRCAO. Item Weight: 0.8 ounces. Product Dimensions: 25.25 x 11 x 0.06 inches.