Orion Atlas 10 EQ-G GoTo Reflector Telescope

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Orion Atlas 10 EQ-G GoTo Reflector Telescope

Orion Atlas 10 EQ-G Reflector w/ GoTo Controller

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

The Orion Atlas 10 EQ-G Reflector's magic starts with the optics. The Atlas 10 features a 254 mm (10") parabolic mirror made from premium Pyrex low-expansion glass for superior thermal stability. The upgraded 2" Crayford-style focuser has a 1.25" adapter to accommodate either size of eyepiece; a 1.25" 26mm Sirius Plossl comes standard, as does a 9x50 finder scope.

Then there's the mount. The beefy Orion Atlas EQ-G provides stable support and motorized dual-axis control, courtesy of dual internal stepper motors that slew the scope at up to 3.4-degrees per second and track with exceptionally low periodic error. With this GoTo version, you can visit any of 13,000+ celestial objects with push-button ease.

Backlash compensation in both axes and programmable periodic error correction (PEC) provide the precision required for astrophotographic guiding with the Orion Atlas EQ10, either manually or with an autoguider via the autoguider port in the drive base. The adjustable-height 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 field battery, or an AC-to-DC adapter to run off of 110-volt AC. Two-year limited warranty.

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.

Updating the GoTo Hand Controller's Firmware:

From version 3.0 and up, the GoTo hand controller's firmware can be updated over the internet with the link to the left.

System Requirements:

  • GoTo hand controller version 3.0 or greater
  • Windows 95 or later
  • An available RS-232 COM port on the PC
  • Computer interface cable (supplied)
  • DC power supply (7.5V to 15V @ 100mA or greater output with 2.1 mm tip positive plug)

Orion Product Number: 24735

Drop-Ship Policy Note: To expedite your order, this telescope (or mount) will be drop-shipped directly from Orion's warehouse to you and availability will be based on Orion's inventory levels. OPT will contact you immediately if there are any delays on shipment and will provide an estimated lead-time. If the product is not readily available, you will have the option to keep the order open with a 10% deposit. Additional Orion items may be drop-shipped along with the telescope (or mount), or shipped directly from our own OPT stock. Non-Orion items will be shipped directly from the OPT warehouse. As a courtesy, OPT will cover all costs for splitting orders and separate shipments.

If a return issue should arise with an Orion drop-ship item, please note that OPT will be required to issue a minimum 10% restocking fee for its return to Orion. With this exception, all other conditions of the OPT return policy apply. Please feel free to call us at 1-800-483-6287or e-mail us if you have any questions on Orion Drop-Ship product availability or on this policy. We're here to serve you!


Alignment Procedure1) Star Alignment then 2) Star Alignment
Aperture254 mm (10")
Camera/Eyepiece Connection1.25
Counterweights(3) 11 lbs.
Exterior ColorOrion Grey Pearl
Focal Length1200 mm
Focal Ratiof/4.7
Hand Controller includedYes
Head DesignEquatorial
Highest Useful Magnification300x
Limiting Stellar Magnitude13.8
Mount Weight54 lbs.
Objects in Database42900 Objects
Optical DesignNewtonian
OTA Mount TypeStyle Dovetail
Power Adapter IncludedDC Cigarette Lighter Adapter
Telescope SeriesG
Tripod Type IncludedAdjustable with Steel Legs
Tube Length1214mm
Tube Weight27.2 lbs
Warranty1 Year Warranty