A large aperture Classic Dobsonian reflector telescope at a very affordable price! 8" diameter reflector optics lets you view the Moon and planets in close up detail, and has enough light grasp to pull in pleasing views of faint nebulas, galaxies and star clusters A perfect Dobsonian telescope that can last a lifetime for the beginning astronomy enthusiast or whole family The ultra-stable Dobsonian base keeps the reflector optical tube perfectly balanced for point-and-view ease of use Includes a 2" Crayford focuser that accepts 1.25" and 2" telescope eyepieces, a 25mm Sirius Plossl eyepiece, an EZ Finder II reflex sight, collimation cap, Starry Night software download, and more!
A powerful telescope capable of providing night after night of stargazing enjoyment, the Orion SkyQuest XT8 Classic Dobsonian is one of our most popular models due to its elegant combination of precision optics, mechanical simplicity, and rock-solid stability. You and your whole family will appreciate the bright, clear views of the night sky provided by the XT8 Classic Dobsonian reflector. The Moon and planets of our solar system like Jupiter, Saturn, and Mars shine brightly in the SkyQuest XT8 Classic, allowing you to inspect them in detail. The XT8's 8" aperture is also large enough to gather a significant amount of light from more distant celestial objects for great views of sparkling star clusters, cloudy nebulas, and faraway galaxies. The XT8 Classic Dobsonian is a tremendous value considering the high quality views it provides on such a wide variety of celestial objects. The point-and-view simplicity of the Dobsonian design is not as complicated as a telescope attached to an equatorial (EQ) mount and tripod, so with a little practice, your whole family can scan the heavens just like experienced hobbyists. For any amateur astronomer seeking serious adventure, the XT8 Classic Dobsonian telescope has it all!
This is the ideal starting scope and comes with a fantastic eyepiece that's considerably better than what's normally found on competitors scopes. It's easy to use and features an easy to understand and use design. Orion has provided a great manual in plain English with the scope and the quick nature of the setup makes it great for younger users as well as adults. With a bright 8" mirror you can resolve detail on Saturn and Jupiter as well as brighter deep space objects like Orion. It's a recommended first scope worldwide and is unmatched in terms of value. If you are unsure of what to buy, this would be our top pick under $1,000 for straight optical performance.
The SkyQuest XT8 Classic Dobsonian is built around an 8" (203mm) diameter parabolic primary mirror mounted in a cast-aluminum support cell. The mirror collects 78% more light than a 6" mirror, so you get a significant increase in ability to observe dust lanes in nebulas, resolve the cores of prominent globular star clusters, and to reveal some of the more subtle structures in faint galaxies. The 1200mm focal length (f/5.9) XT8 mirror allows you to obtain clear and crisp views at moderate to high magnifications on clear nights with good seeing conditions. Enhanced-reflectivity mirror coatings boost the XT8 Classic Dobsonian's mirror to 94% reflectivity so as much light as possible is transmitted to the eyepiece, for clear and bright views. The Dobsonian base of the XT8 Classic provides a simple and stable low-profile altazimuth platform for the 8" aperture reflector optical tube.
The tube attaches securely to the base by virtue of Orion's CorrecTension Friction Optimization system, which utilizes heavy-duty springs to both securely couple the tube to the base, and to keep the telescope in constant balance to avoid drifting during observations. Even with large 2" eyepieces and accessories installed, the XT8 Dobsonian telescope optical tube will remain balanced throughout your viewing sessions.
The SkyQuest XT8 Classic Dobsonian features a 2" Crayford focuser with a removable 1.25" adapter so it can accept both 1.25" and 2" eyepieces and accessories. The Crayford mechanism ensures all focus adjustments are smooth, accurate, and virtually free of backlash and flexure, even with heavier 2" accessories installed, so you can achieve precise focus easily.
The included 1.25" Orion 25mm Sirius Plossl eyepiece provides a 48-power view when used with the SkyQuest XT8 Classic Dobsonian telescope. Offering a wide 52° apparent field of view, the 25mm Sirius Plossl eyepiece yields extremely sharp images of impressively high contrast. You can expand your magnification options by purchasing additional 1.25" or larger 2" wide-angle eyepieces of different focal lengths. (Additional eyepieces sold separately.)
Following a simple alignment procedure, you can use the EZ Finder II sight to accurately aim the SkyQuest XT8 Classic Dobsonian telescope at objects in the sky like the Moon and bright planets. Once aligned with the telescope, just turn on the EZ Finder II and peer through the sight's small circular viewing window so you see the red dot, and move the telescope until the red dot is on the object you want to see. Look in the telescope eyepiece, and the object will be there!
The popular Orion SkyQuest XT8 Classic Dobsonian also includes a quick collimation cap for easy mirror alignment, and dust caps for the reflector telescope tube and focuser.
The Orion XT8 Classic Dobsonian telescope can conveniently be separated into two pieces for easy transport and storage. By unhooking the two CorrecTension springs from the Dobsonian base you can detach the 46.5" long optical tube. The XT8 reflector optical tube weighs 20.3 lbs., while the 19" diameter Dobsonian base tips the scales at 20.7 lbs. With an assembled weight of 41 lbs., the XT8 Classic Dobsonian can be easily moved to and from your favorite observing site, whether it's just a few steps out the back door, or many miles down the road.
A great telescope with the optical strength to please serious beginners and veteran skygazers alike, the Orion SkyQuest XT8 Classic Dobsonian reflector will provide years of astronomical adventure for you and your whole family.
Best for imaging: Lunar & planetary
User level : Beginner
Optical design : Reflector
Optical diameter : 203mm
Focal length : 1200mm
Focal ratio : f/5.9
Optics type : Parabolic
Eyepieces Sirius Plossl 25.0mm (1.25")
Magnification with included eyepieces 48x
Resolving power : 0.57arc*sec
Lowest useful magnification : 29x
Highest useful magnification : 300x
Highest theoretical magnification 406x
Limiting stellar magnitude : 14.2
Finder scope EZ Finder II
Focuser 2" Crayford
Secondary mirror obstruction 47mm
Secondary mirror obstruction by diameter 23%
Secondary mirror obstruction by area 5%
Mirror coatings/over-coatings Aluminum & Silicon Dioxide
Mount type: Dobsonian
Astro-imaging capability : Lunar & planetary
Bearing material PTFE and UHMW bearings
Tube material : steel
Tripod material: Wood
Length of optical tube: 46.5 in.
Weight, optical tube: 20.3 lbs.
Weight, mount/tripod: 20.7 lbs.
Weight, fully assembled: 41.0 lbs.
Other features: CorrecTension system, 2" Focuser, 1.25" eyepiece adapter
Warranty: One year
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