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Orion - ShortTube 80-A Refractor Telescope


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Manufactured by: Orion


Orion ShortTube 80-A Refractor Telescope

The Orion ShortTube 80-A Refractor Telescope (for "Astronomy") is an upgraded version of our ever-popular ShortTube 80. Now improved with fully multi-coated optics and a soft carrying case, the "little telescope that could" is better than ever!

  • Our popular ShortTube 80 refractor telescope, configured for astronomical viewing
  • Fully multi-coated optics provides maximum light throughput to your eye for bright wide-field views
  • Big 8x40 finder scope makes it easy to aim the ShortTube 80-A accurately
  • The 400mm, f/5 achromatic refractor optics deliver wide-field views of deep-sky and solar system objects
  • Features a smooth-adjusting 1.25" rack & pinion focuser, and includes 90-degree mirror star diagonal, two Expanse eyepieces (20mm, 9mm), tube rings, short dovetail bar, soft carry case, and Starry Night software


A fantastic take-anywhere astro telescope, you'll love its bright, wide-field views. Its 80mm objective lens and short 400mm (f/5.0) focal length are perfect for scanning the heavens. Its wide field of view makes it ideal for deep sky targets. You'll see dramatic star clusters, wispy nebulas, and expansive galaxies. But it also excels for viewing solar system targets. You'll also monitor the moon's phases and track the motions of the planets with crisp views of Saturn's rings and Jupiter's moons.

Multi-coating on all air-to-glass surfaces ensures maximum light transmission for sharp, accurate image fidelity. Includes an aluminum rack-and-pinion focuser (1.25"), 90° mirror diagonal, large 8x40 finder, tube rings, and two Expanse eyepieces (20mm and 9mm). And the convenient mounting block attaches easily to Orion telescope mounts. It's a great way to get started in astronomy — or add a portable second scope to your astro arsenal.




Additional Information

Name Orion - ShortTube 80-A Refractor Telescope
Manufacturer Orion
Model ORI-09947
Manufacturer Part No ORI-09947
Telescope Aperture 3.1" - 4"
Eyepieces Expanse 20.0mm,9.0mm (1.25")
Eyepiece 1 Magnification 20x
Eyepiece 2 Magnification 44x
Finderscope 8x40
Focal Length 400mm
Focal Ratio f/5.0
Focuser 1.25" Rack-and-pinion
Highest Useful Magnification 160x
Included Accessories Soft carry case, Tube rings, Dovetail mounting bar
Limiting Stellar Magnitude 12.2
Lowest Useful Magnification 12x
Mount None
Optical Coatings Fully multi-coated
Optical Design Refractor
Optical tube diameter 80mm
Optical Tube Length 15.0 in
Optical Tube Weight 3.8 lbs
Resolving Power 1.45arc*sec
Star Diagonal 1.25" 90° Mirror Star
Warranty One year