Orion AstroView 120ST EQ Refractor Telescope Kit with Eyepieces, 600mm Focal Length

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$599.95
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About Orion

The Orion AstroView 120ST EQ Refractor Telescope is a compact, rich-field refractor designed for observation of nebular clouds, star clusters and even galaxies. It has the same 120mm (4.7") clear aperture as the standard AstroView 120, but the 120ST's multi-coated achromatic objective lens has a focal length of just 600mm (f/5) compared to 1000mm (f/8.3) for the standard model.

That translates to a 66% wider field of view for any given eyepiece. With the included 25mm Plossl, the 120ST covers a sprawling 2.1° swath of sky - enough to display the entire Double Cluster, Pleiades Cluster, or North America Nebula! The fast f/5 optical system also makes it an excellent telescope for astrophotography. The cast-metal 2" rack-and-pinion focuser accommodates either a 1.25" or 2" diagonal, so you can use optional 2" eyepieces for an even dreamier wide-field effect. The 6x30 finder scope features an aluminum dovetail bracket with easy, two-screw adjustment. The two 1.25" Sirius Plossl eyepieces provide good, sharp views at 24x (25mm focal length) and 60x (10mm focal length).

A 1.25" mirror star diagonal is also included. The optical tube measures just 26" long including dew shield, so it earns high marks for portability. It comes with the AstroView equatorial mount, which provides the stability and smoothness of motion you need for enjoyable wanderings through the heavens. A free polar-axis scope gets you polar-aligned quickly and accurately and manual slow-motion controls let you center objects and track them effortlessly. Add an optional EQ-3M electronic drive for automatic tracking. The aluminum tripod adjusts in height and includes a roomy accessory tray.

Orion Features

  • A wonderful telescope for viewing the moon, planets and even deep-sky objects
  • 120mm aperture and 600mm focal length for sharp views of nebular clouds, star clusters and galaxies
  • Includes sturdy tripod, equatorial mount for hands-free celestial tracking & polar alignment scope
  • Includes two eyepieces, finder scope, focuser, diagonal and Starry Night astronomy software

Orion Specifications

Use
Astronomy
User level
Intermediate
Optical design
Refractor
Optical diameter
120mm
Focal length
600mm
Focal ratio
f/5.0
Coatings
Multi-coated
Optics type
Air-spaced doublet
Glass material
Crown/Flint
Eyepieces included
Sirius Plossl 25.0mm, 10.0mm
Magnification with included eyepieces
24x, 60x
Resolving power
0.97arc sec
Lowest useful magnification
17x
Highest useful magnification
240x
Limiting stellar magnitude
13.1
Optical quality
Diffraction Limited
Finder scope
6x30
Focuser
2" Rack-and-pinion
Diagonal
1.25" 90-deg Mirror Star
Mount style
Equatorial
Astro-imaging capability
Lunar & planetary
Dovetail bar system
Yes
Motor drive compatibility
Clock drive (sold separately)
Computerized compatibility
Not compatible
Bearing material
Friction bearings
Latitude range
18-63
Setting circles
Yes
Polar-axis scope
Included
Counterweights
One 7.5 lbs, one 4 lbs
Tube material
Aluminum
Tripod material
Aluminum
Counterweight bar length
10 in
Diameter of counterweight shaft
20mm
Height range of mount/tripod
36.00 in - 56.00 in
Additional included accessories
Polar alignment scope, 1.25" adapter, slow-motion control cables, dust cap, polar axis finder scope plastic cover, accessory tray bracket, wrenches, phillips-head screwdriver, flat-head screwdriver key
Other features
2" Focuser
Length of optical tube
24.5 in
Weight, optical tube
8.6 lbs
Weight, mount/tripod
16.5 lbs
Weight, fully assembled
36.3 lbs
Warranty
Orion 1 year limited warranty
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