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Orion 09881 Observer 70mm Altazimuth Refractor Telescope (Black)

3.8 out of 5 stars 28 customer reviews

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  • A great entry-level refractor telescope for beginners looking for a quality instrument that will provide great views of the night sky
  • 70mm (2.75 inch) aperture lens collects enough light from the night sky for wonderful views of the Moon, bright planets like Mars, Saturn, and Jupiter, and the brightest nebulas and star clusters
  • The Observer 70 AZ's altazimuth telescope mount provides smooth up/down and left/right panning motion across the sky, and the adjustable-height tripod helps make your viewing sessions comfortable
  • Includes two Explorer II 1.25 inch eyepieces (25mm, and 10mm focal lengths) for viewing at 28x or 70x magnification through the telescope, an EZ Finder II reflex sight for easy aiming, and a 90-degree mirror diagonal for crisp and clear night sky views
  • Can also be used for pleasing daytime terrestrial views of wildlife and scenery with a correct-image diagonal (sold separately)
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Orion 09881 Observer 70mm Altazimuth Refractor Telescope (Black)
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Customer Rating 4 out of 5 stars (28) 4 out of 5 stars (1033) 4 out of 5 stars (670) 4 out of 5 stars (474) 4 out of 5 stars (523) 3 out of 5 stars (483)
Price Unavailable $59.99 $81.99 $99.99 $92.99 $79.79
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Uranus UU Amazon.com Amazon.com
Item Dimensions 24 x 24 x 34 in 7 x 18 x 14 in 5.12 x 14.96 x 3.94 in 8.3 x 26 x 4.9 in 13 x 39 x 10 in 13 x 38 x 10 in
Item Weight 6.5 lbs 3.3 lbs 17.99 lbs 5 lbs 13.9 lbs 5.85 lbs

Product description

Thanks to its sturdy altazimuth mount and quality refractive optics, the Orion Observer 70mm refractor telescope works well for both daytime terrestrial viewing and nighttime astronomical use. The included altazimuth mount offers intuitive up/down (altitude) and left/right (azimuth) motion to make maneuvering the telescope easy. Whether you're scanning a scenic landscape or surveying the Milky Way for star clusters, this telescope will provide a pleasant experience. The Observer 70mm Altazimuth Refractor Telescope is well suited to beginning astronomers thanks to its versatility and simple, easy-to-use design. It is a very lightweight and compact telescope, weighing just 6.5 lbs. once assembled, so it's easy to carry to any observing location, be it out on the lawn or an hour's drive into the hills. Its glossy black refractor telescope optical tube is made of seamless aluminum and outfitted with a smooth-action rack-and-pinion focuser which accepts 1.25 inch accessories and eyepieces. Housed inside the telescope tube is a multi-coated, achromatic glass objective lens that is 70mm in diameter, with a focal length of 700mm (f/10). This lens takes in 36% more light than a 60mm lens, meaning you'll be able to see more detail on both celestial and terrestrial objects. Compared to a 60mm refractor, the Orion Observer 70mm and its larger optics will reward you with brighter images and, for astronomy, a larger repertoire of objects to see. You'll enjoy outstanding looks at the Moon's cratered surface, Jupiter's cloud bands and moons, Saturn and its rings, the majestic Orion Nebula, and the mind-boggling Andromeda Galaxy, to name just a few of the treasures you can see. A dew and glare shield on the objective end (or front of the telescope) helps prevent dew from forming on the optical lens and also helps block unwanted stray light.


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on April 18, 2017
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on February 27, 2014
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on February 27, 2014
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