Skip to content

Orion 80 mm CT80 Compact Refractor Telescope with Equatorial Mount - 09911

shipping truck Free shipping
SKU: ORI-09911

Orion CT80 Refractor with Equatorial Mount

  • Lightweight and compact refractor telescope system offering convenient portability for stargazers on the go.
  • This 80 mm (3.15") aperture f/5 refractor delivers expansive wide-field night sky views.
  • Comes with an EQ-1C equatorial mount that offers slow-motion control to enable easy celestial object tracking.
  • Includes a 25 mm eyepiece with 16x magnification, and a 10 mm eyepiece with 40x magnification.
  • An 1.25" 90º star diagonal and red-dot reflex sight are also included in this package.


For for the perfect starter telescope that doesn't take up too much space, the Orion CT80 EQ Refractor is the solution! Despite its compact size, this refractor setup offers a great deal of stargazing performance.

This setup combines the versatile CT80 ShortTube Wide-Field Refractor with a solid equatorial (EQ) mount and adjustable tripod. With an 80 mm (3.15") aperture f/5 objective lens, larger than lenses found in most conventional beginner telescopes, the CT80 is able to deliver brighter views of celestial objects. Fully coated optics with anti-reflection coatings enable sharp views with distinct clarity. Knife-edge baffles on the interior keep off-axis reflection out, optimizing contrast. The whole family will be able to enjoy incredible wide-field views of the Moon, planets, and even bright deep sky objects such as nebulae and star clusters with the Orion CT80 EQ Compact Refractor.

Expressly designed for convenient stargazing, the included EQ-1C equatorial mount comes with handy slow-motion controls for simple manual tracking of celestial objects as they appear to make their way across the night sky. This equatorial mount head rests upon a robust black metal tripod with adjustable cylindrical legs that can extend or retract to establish a comfortable telescope height for its current user.

The CT80 Equatorial Refractor sports a 1.25" Rack & Pinion Focuser, along with two 1.25" eyepieces. The included 25 mm Kellner eyepieces provides a 16x magnification view through the telescope, while the included 10 mm Plossl ocular boosts magnification up to 40x for close-up looks. An included 1.25" star diagonal places inserted eyepieces at a comfortable angle for stargazing. You can use other 1.25" eyepieces or Barlow lenses with the CT80 to achieve different magnifications (Barlows and additional eyepieces are sold separately). Finally, a red-dot sight with two brightness settings is included to help aim the telescope at interesting objects.

This compact refractor telescope optical tube measures just 15" long and weighs 2.25 lbs. for easy portability and storage. In fact, the entire Orion CT80 Equatorial Refractor setup with mount, tripod, and 3.25 lb. counterweight, weighs just under 16 lbs.

Orion CT80 Equatorial Refractor Specifications

  • Best for Viewing: Lunar and planetary
  • Best for Imaging: Lunar and terrestrial
  • User Level: Beginner
  • Optical Design: Refractor
  • Optical Diameter: 80 mm
  • Focal Length: 400 mm
  • Focal Ratio: f/5.0
  • Coatings: Fully coated
  • Optics Type: Air-spaced doublet
  • Glass Material: Glass/Flint
  • Eyepieces: 25 mm 1.25" Kellner (16x magnification); 10 mm 1.25" Plossl (40x magnification)
  • Resolving Power: 1.45 arc*sec
  • Lowest Useful Magnification: 11x
  • Highest Useful Magnification: 160x
  • Limiting Stellar Magnitude: 12.2
  • Finderscope: Reflex sight
  • Focuser: 1.25" Rack & Pinion
  • Mount Type: Equatorial
  • Motor Drive Compatibility: Clock drive sold separately
  • Setting Circles: Yes
  • Polar Scope: Not Available
  • Tube Material: Steel
  • Tripod Material: Aluminum
  • Optical Tube Length: 14.7"
  • Optical Tube Weight: 2.2 lbs.
  • Mount/Tripod Weight: 8.9 lbs.
  • Weight Fully Assembled: 15.9 lbs.