Beginning astronomy enthusiasts seeking an affordable entry to astronomical adventure will get it in spades with an Orion SpaceProbe 3 Altazimuth Reflector Telescope. Great for all-around astronomical observing, this highly portable, uncomplicated telescope is just the right size and weight for all family members, and just the right price for parents.
The SpaceProbe 3 Altazimuth Reflector Telescope makes the night sky¿s treasures accessible right from the comfort of your own backyard. This inexpensive reflector telescope will amaze you with revealing views of Saturn¿s picturesque rings, Jupiter¿s moons, and the beautifully cratered terrain of our own Moon¿s surface. Built around a 3" (76mm) diameter primary mirror, the Orion SpaceProbe 3 Altazimuth Reflector Telescope also gathers enough light to snare the faint glows of some very exotic star clusters and distant nebulas! The SpaceProbe 3¿s focal length of 700mm (f/9.2) provides sharp views of cosmic curiosities the whole family can enjoy.
The aluminum Newtonian reflector optical tube features a 1.25" rack-and-pinion focuser to ensure sharp images in the telescope eyepiece. Speaking of which, each Orion SpaceProbe 3 Altazimuth Reflector includes¿ two interchangeable 1.25¿ Explorer II telescope eyepieces, a 25mm and a 10mm. The 25mm eyepiece will yield 28x power magnification in the SpaceProbe 3 while the 10mm eyepiece boosts the magnification up to 70x power. A wide-field EZ Finder II reflex sight is also included to aid in locating objects and aiming the telescope. An adjustable-height tripod with accessory tray and aluminum legs is also included with the SpaceProbe 3.
The Orion SpaceProbe 3 Altazimuth Reflector Telescope comes with an altazimuth mount which allows simple up/down and left/right motion.¿ The altazimuth mount is lightweight and easy to use for anyone on the family. (+Like all reflector telescopes, the SpaceProbe 3 is not recommended for terrestrial viewing on land as the images will not be right-side up.)
For the novice keen to discover what¿s "out there," the affordable Orion SpaceProbe 3 Altazimuth reflector Telescope provides a wonderful opportunity!
Specifications
| Use | Astronomy |
| User level | Beginner |
| Optical design | Reflector |
| Optical diameter | 76mm |
| Focal length | 700mm |
| Focal ratio | f/9.2 |
| Optics type | Spherical |
| Glass material | Soda-lime plate |
| Eyepieces included | Explorer II 25.0mm, 10.0mm |
| Magnification with included eyepieces | 28x, 70x |
| Resolving power | 1.52arc sec |
| Lowest useful magnification | 18x |
| Highest useful magnification | 95x |
| Limiting stellar magnitude | 12.1 |
| Optical quality | Diffraction limited |
| Finder scope | EZ Finder II |
| Focuser | 1.25" Rack-and-pinion |
| Secondary mirror obstruction | 20mm |
| Secondary mirror obstruction | 26% by diameter |
| Secondary mirror obstruction by area | 7% |
| Mirror coatings/over-coatings | Aluminum & Silicon Dioxide |
| Mount style | Altazimuth |
| Astro-imaging capability | Simple moon shots |
| Computerized compatibility | No |
| Bearing material | Friction bearings |
| Latitude range | 14-70 |
| Setting circles | Yes |
| Tube material | Steel |
| Tripod material | Aluminum |
| Additional included accessories | Altitude fine adjustment |
| Length of optical tube | 27.0 in |
| Weight, optical tube | 4.0 lbs |
| Weight, mount/tripod | 4.4 lbs |
| Weight, fully assembled | 8.4 lbs |
| Warranty | Orion 1 year limited warranty |
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