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Orion Telescopes
Orion Atlas 10 EQ-G GoTo Reflector Telescope
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  • This telescope's big 10" optics and precision engineered equatorial mount will show you what big-aperture performance is all about
  • The Atlas 10 EQ-G reflector features an expertly figured 254mm (10") parabolic mirror of 1200mm focal length (f/4.7) for breathtaking views
  • The Atlas EQ-G mount's GoTo computerized database provides automated motorized access to over 42,000 celestial objects
  • The robust Atlas EQ-G mount provides stable support for the heavy optical tube and added accessories
  • Includes 9x50 finder scope, 2" Crayford focuser, 1.25" 25mm and 10mm Sirius Plossl eyepieces, Starry Night astronomy software download card, and more!

Learn more
Item #  24735

Nights under the stars will never be quite the same with the Orion Atlas 10 EQ-G GoTo Reflector Telescope. They'll be much, much more rewarding. This scope's huge 10" optics and precise, heavy-duty computerized GoTo mount will show you what big-telescope performance is all about.

It starts with the optics. The Atlas 10 EQ-G features an expertly figured 254mm (10") parabolic mirror with a 1200mm focal length (f/4.7) for big, very bright views. You'll soon find yourself grinning ear to ear as your eyes take in beautifully bright views of elusive deep space objects that smaller aperture instruments simply cannot detect. Not to mention the breathtaking scenes the Orion Atlas 10 EQ-G GoTo Reflector will display of the Moon and planets of our solar system. The 2" Crayford focuser adjusts smoothly without backlash for precise performance and has a 1.25" adapter to accommodate either size of telescope eyepiece. A 1.25" 25mm Sirius Plossl telescope eyepiece comes standard, as does a 10mm Sirius Plossl and a nice, bright 9x50 finder scope to help aim this colossal reflector telescope.

Then there's the telescope mount. The capable and computerized Atlas EQ-G mount provides rock-solid stable support and computerized GoTo control, courtesy of dual internal stepper motors that slew the scope at up to 3.4° per second and track with exceptionally low periodic error. Using the handheld GoTo controller lets you visit any of over 42,000 celestial objects with pushbutton ease. The Atlas EQ-G mount features backlash compensation in both axes and programmable periodic error correction (PEC) to provide the precision required for astrophotographic guiding with a dedicated autoguider and there's even an ST-4 autoguider port built right into the drive base. The adjustable-height Atlas tripod has large 2"-diameter stainless steel tubular legs, making for a highly sturdy support system.

You will need an external 12-volt DC power supply or an AC-to-DC adapter to run off of 110-volt AC, such as an Orion Dynamo Pro (sold separately).

For owners of the Atlas EQ-G GoTo Mount whose version of the GoTo hand controller is 3.0 or greater, the GoTo hand controller's firmware can be updated over the internet.


Limited Warranty against defects in materials or workmanship for one year from date of purchase. This warranty is for the benefit of the original retail purchaser only. For complete warranty details contact us at 800-447-1001.


Please note this product was not designed or intended by the manufacturer for use by a child 12 years of age or younger.

Product Support
Visit our product support section for instruction manuals and more
  • Best for viewing
    Brighter deep sky
  • Best for imaging
    Deep sky
  • User level
  • Optical design
  • Optical diameter
  • Finder scope lens diameter
  • Focal length
  • Focal ratio
  • Optics type
  • Glass material
    Low thermal expansion glass
  • Eyepieces
    Sirius Plossl 25.0mm,10.0mm (1.25")
  • Magnification with included eyepieces
    46x, 120x
  • Resolving power
  • Lowest useful magnification
  • Highest useful magnification
  • Highest theoretical magnification
  • Limiting stellar magnitude
  • Optical quality
    Diffraction limited
  • Finder scope
  • Focuser
    2" Crayford
  • Secondary mirror obstruction
  • Secondary mirror obstruction by diameter
  • Secondary mirror obstruction by area
  • Mirror coatings/over-coatings
    Aluminum & Silicon Dioxide
  • Mount type
  • Astro-imaging capability
    Lunar, planetary & long exposure
  • Dovetail bar system
  • Computerized compatibility
    Go-To included
  • Alignment procedure
    3-Star Alignment, 2-Star Alignment, 1-Star Alignment
  • Number of objects in database
  • Tracking rates
    Sidereal, Solar and Lunar
  • Motor speeds
    3.4°/sec, 600x, 500x, 400x, 64x, 32x, 16x, 8x, 2x, 1.75x, 1.5x, 1.25x
  • Motor type
    Microstep driven 1.8°stepper motors
  • Bearing material
    Sealed ball bearings
  • Power requirement
    12-volt DC - 2A (tip positive)
  • PEC
  • GPS
    Sold separately
  • Backlash compensation
  • Setting circles
  • Polar-axis scope
  • Counterweights
    Three 11 lb.
  • Available ports
    RS-232, autoguider
  • Tube material
  • Tripod material
  • Tripod leg diameter
    2.00 in.
  • Counterweight bar length
    11 in.
  • Diameter of counterweight shaft
  • Height range of mount
    40.00 in. - 61.50 in.
  • Length of optical tube
    47.8 in.
  • Weight, optical tube
    27.2 lbs.
  • Weight, mount/tripod
    54.0 lbs.
  • Weight, fully assembled
    117.0 lbs.
  • Additional included accessories
    Pyrex primary mirror, Open-ventilation mirror cell, Polar-alignment scope
  • Other features
    Integrated Dec. and R.A. motor drives, GoTo hand controller, Collimation cap
  • Warranty
    One year

Orion Atlas 10 EQ-G 10" reflector telescope Optical Tube Assembly
25mm Orion Sirius Plössl telescope eyepiece (1.25")
10mm Orion Sirius Plössl telescope eyepiece (1.25")
Orion 2" - 1.25" telescope eyepiece adapter
Orion Atlas EQ-G GoTo equatorial mount
Computerized object hand controller
Orion 9x50 finder scope
Dovetail finder telescope base
Collimation cap
Camera Adapter
Tube rings
Tube ring mounting plate
11 lb counterweights
Counterweight shaft
Tripod accessory tray
Dust cap
12V DC power cable
GoTo hand controller cable for Atlas EQ-G
GoTo hand controller bracket
Wire clip
Starry Night special edition software digital download insert

Orders received by 1pm Eastern Standard Time for in-stock items ship the same business day. Order received after noon will ship the next business day. When an item is not in-stock we will ship it as soon as it becomes available. Typically in-stock items will ship first and backordered items will follow as soon as they are available. You have the option in check out to request that your order ship complete, if you'd prefer.

A per-item shipping charge (in addition to the standard shipping and handling charge) applies to this product due to its size and weight. This charge varies based on the shipping method.

Standard Delivery: $0.00
Standard Delivery to Canada: $170.00
3 Day Delivery: $373.00
2 Day Delivery: $373.00
Next Day Delivery: $449.00

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