Celestron C80 EDRGT
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Affordable 80mm Refractor on a stable Go-To German Equatorial mount, the C80 EDR-GT is another advanced series telescope designed to offer the novice or advanced user features and quality that serious astronomers can appreciate... The C80 EDR-GT refractor is packed with great features and excellent optics including our high quality ED glass. The refractor style 80ED (APO) features a 2inch rack and pinion focuser and has a bracket that can adapt to a photo tripod. ED glass provides excellent color correction and razor sharp images and virtually eliminates chromatic aberration usually seen during planetary and lunar viewing. With a focal length of 600mm (f/7.5) the 80ED refractor is well suited for wide field astrophotography as well as nature photography. This telescope comes complete with a 20mm 1.25inch eyepiece, erect image diagonal and 6x30 finderscope. Mounted on the Advanced GT Series computerized mount, this telescope has some high performance software and hardware features. Operated by our proven NexStar? computer control technology the telescope has a 40,000+ object database with 400 user-definable objects and expanded information on over 200 objects. Custom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable star; solar systems; objects and asterisms. Using the RS-232 communication port on the hand control, you can control the telescope via a personal computer and our new flash upgradeable hand controls allow you to update your telescope's operationg software via the internet. An autoguider port is also included for astrophotography. 80mm (Apo style) refractor. Fully multi-coated optics and high quality ED glass for clear, razor sharp views. 6x30 finderscope to help accurately find objects. 20mm Pl? eyepiece (30x) included for wide field viewing. Heavy Duty (CG-5GT) computerized German equatorial mount. Ultra sturdy 2inch diameter steel tripod with accessory tray. Star diagonal provides more comfortable viewing position when observing objects that are high in the sky. Includes CD-ROM "The Sky" Astronomy Software which provides education about the sky and printable sky maps. Proven NexStar computer control technology. 40,000 object database with 400 user-definable objects and expanded information on over 200 objects. Custom database lists of all the most famous deep-sky objects by name and catalog number; the most beautiful double, triple and quadruple stars; variable star; solar systems; objects and asterisms. DC Servo motors with encoders on both axes. Flash upgradeable hand control software and motor control units for downloading product updates over the Internet. Autoguider port for long exposure astrophotography. Double line, 16-character Liquid Crystal Display Hand Control with backlit LED buttons for easy operation of goto features. Compatible with optional NexRemote telescope control software, for advanced control of your telescope via computer. RS-232 communication port on hand control to control the telescope via a personal computer. GPS-compatible with optional CN16 GPS Accessory (93966). Technical Information: OPTICAL DESIGN: Refractor. APERTURE: 80 mm (3.15 in). FOCAL LENGTH: 600 mm (23.62 in). FOCAL RATIO: 7.5. FINDERSCOPE: 6x30. MOUNT: CG-5 Equatorial. EYEPIECE 1: 20 mm (0.79 in). MAGNIFICATION 1: 30 x. STAR DIAGONAL: 1.25. ACCESSORY TRAY: Yes. TRIPOD: 2 (two) inch Stainless Steel. CD ROM: The Sky Level 1. POWER SUPPLY: Car Battery Adapter. HIGHEST USEFUL MAGNIFICATION: 189 x. LOWEST USEFUL MAGNIFICATION: 11 x. LIMITING STELLAR MAGNITUDE: 12. RESOLUTION: 1.73 arc seconds. RESOLVING POWER: 1.45 arc seconds. PHOTOGRAPHIC RESOLUTION: 267 line/mm. LIGHT GATHERING POWER: 131 x. ANGULAR FIELD OF VIEW: 1.67 °. LINEAR FIELD OF VIEW (@1000 YDS): 87.5 ft (26.67 m). OPTICAL COATINGS: Fully Multi-Coated. OPTICAL TUBE LENGTH: 23 in (584.2 mm). TELESCOPE WEIGHT: 42 lb (19.05 kg). COUNTERWEIGHTS: 1-7lb.
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