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| If you are in the market for a simple and easy-to-use telescope – but one that’s optically a significant step above the toy-store telescopes in its modest price range – consider this Celestron AstroMaster 76mm equatorial reflector. This powerful optical instrument has 118 times the light-gathering ability of even the sharpest eye, but comes in a package that weighs only 16 lbs. It’s a telescope you can pick up and carry outside with one hand – a scope almost any young astronomers can set up on their own. Its 76mm aperture gives you images 60% brighter than those in the typical 60mm refractor that’s common in this price range. And the 26% higher resolution (the ability to see small details) of the AstroMaster’s 76mm mirror, when compared to a 60mm scope, shows you small lunar and planetary details no smaller scope can show you. The sensible 35x and 70x magnifications of its two quality eyepieces reveal hundreds and hundreds of celestial details that are invisible to the unaided eye – for a price no higher than that of lesser quality department and toy store telescopes. The optical quality of this Celestron is surprisingly good, considering its very modest price. You’ll see detailed and high contrast views of the Moon, planets, binary stars, and star clusters – as well as the brighter nebulas and galaxies outside the solar system. The rugged and stable CG-2 equatorial mount has manual slow motion controls in both axes. These let you easily locate solar system and deep space objects and manually track them across the sky. This Telescope’s Optical System . . . - Reflector optical tube: 76mm (3”) aperture f/9.2 focal ratio Newtonian reflector. All-glass mirrors, coated with highly reflective aluminum and overcoated with quartz for long life. There are no plastic optical components. 26 inch long 700mm focal length aluminum tube with protective tube end rings. The reflector design of the scope is totally free of the purple haze of spurious color visible around the Moon and planets in lesser refractor scopes. Images are sharp and clear. You can even collimate (align) both mirrors for the sharpest images. This will have to be done only rarely, thanks to the special design of the cell holding the lightweight primary mirror.
- Rack and pinion focuser: The 1.25” focuser has dual focusing knobs for precise image control with either hand. The large focus knobs are easy to operate, even while wearing gloves or mittens in cold weather.
- Two eyepieces: You get a medium power 1.25” 10mm (70x) eyepiece and a lower power 1.25” 20mm (35x) erect image eyepiece with a 1.4° field of view (almost three times the diameter of the full Moon). The 35x erect image eyepiece lets you use the 76EQ terrestrially, as its images are not upside-down as they are with most reflectors. Both eyepieces are a higher quality optical design than you'll find in most other telescopes in this price range. They have antireflection coatings on their lens surfaces for sharp images and very good contrast. Instead of providing low quality eyepieces that give unrealistically high (and generally unusable) 200-300x magnifications, Celestron has chosen to provide higher quality eyepieces with sensible powers you can use and enjoy every time you take your AstroMaster out to observe.
- Finderscope: A non-magnifying red dot finder is permanently attached to the side of the optical tube. The battery-operated red dot finder seems to project a dot of red light on the sky or on the daytime landscape exactly where the telescope is pointed. The red dot will help you center distant objects in the telescope so you don’t have to search for them using the narrow eyepiece field of view. Collimating knobs on the finder let you line up its red dot precisely with the main telescope optics to make centering distant objects easy and painless.
- Software: The scope comes with TheSky Level 1 sky-charting CD-ROM that has a database of 10,000 stars and objects it can plot and display on your Windows-based computer screen. That’s enough solar system and deep space detail to keep you busy observing for years, yet not so much that you’re overwhelmed by charts showing much more detail than your scope can usefully reveal. Custom sky chart printing lets you print out eyepiece finder charts to use with your telescope to help you locate and identify the planets and many famous and faint deep space nebulas, galaxies, and star clusters by star-hopping from object to object using your scope’s pan handle control. There are 75 full color images of well-known celestial objects to help you identify them through your scope.
This Telescope’s Mount . . . - Equatorial mount: The sturdy CG-2 equatorial mount is designed for astronomical observing. By aligning the mount on the north celestial pole, you only need to turn one slow motion control knob to follow planets and stars as they travel across the sky. Two counterweights on the opposite side of the mount from the telescope balance the weight of the optical tube and make it easy to move the scope effortlessly from one part of the sky to another. No tools are required to adjust the position of the counterweights to quickly and precisely balance the optical tube. A micrometer control lets you adjust the altitude of the scope mount for fast alignment on the north celestial pole with no tools required.
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| | 76mm aperture Newtonian reflector optical tube with 1.25” rack and pinion focuser; CG2 equatorial mount with dovetail bar quick release tube mount system, altitude adjustment micrometer control, setting circles, manual slow-motion controls, and locks on both axes; 10mm (70X) and erect image 20mm (35X) eyepieces; non-magnifying straight-through red dot finder; adjustable height stainless steel tripod with accessory tray; operating instructions; TheSky Level 1 CD-ROM star-charting software. |
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