Orion Atlas 8 EQ-G GoTo Reflector Telescope

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Orion Atlas 8 EQ-G GoTo Reflector Telescope

If your interest in amateur astronomy runs the gamut from observing to astro-imaging, you need an instrument that's up to the task like the Orion Atlas 8 EQ-G. It's an 8" reflector with precision parabolic mirror optics, perfect for visual and photographic forays into deep space.

The tube assembly of the Orion Atlas 8 EQ-G features an upgraded 2" Crayford-style focuser with a 1.25" adapter, allowing use of either 2" or 1.25" eyepieces and accessories. You also get an 8x40 achromatic finder scope and a 26mm (38.5x) Sirius Plossl eyepiece (1.25"). Large collimation knobs on the high-ventilation rear cell and a center mark on the primary mirror itself make optical alignment easy and precise.

At the heart of the Orion Atlas 8 EQ-G is the 203mm parabolic primary mirror with a focal length of 1000mm (f/4.9) and center-marked for easier, more accurate collimation. The 1000mm focal length is excellent for visually studying a wide variety of celestial objects, from planets to distant galaxies, and the f/4.9 focal ratio is plenty fast for deep-space CCD or film photography. The mount has backlash compensation in both axes and programmable periodic error correction (PEC), which provides the precision required for astrophotographic guiding, either manually or with an autoguider via the autoguider port in the mount's drive panel.

Speaking of the mount, the beefy Orion Atlas EQ-G provides incredibly stable support, thanks to its solid construction and 2"-diameter stainless steel legs, which adjust in height. Internal DC stepper motors offer nine slew rates ranging from 2x to 800x sidereal and three tracking rates: sidereal, lunar, and solar. You'll slew from one object to the next at a clip of up to 3.4 degrees per second. And astrophotographers are raving about the low periodic tracking error.

With this GoTo version of the Atlas 8 EQ-G, you can visit any of 13,000+ celestial objects with pushbutton ease. The hand controller has a two-line, backlit LCD screen and a red-illuminated keypad. An RS-232 serial port permits connection to a personal computer for control of the telescope via astronomy software such as Starry Night Pro. Navigating the menu buttons is nicely intuitive and takes little time to master. The database includes the complete Messier, NGC, and IC catalogs of clusters, nebulas, and galaxies; eight planets; 100 named stars; and 25 user-defined objects.

The Atlas EQ-G mount requires an external 12-volt DC power supply, sold separately. One-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
  • Windows95 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 2.1mm tip positive plug)

Orion Product Number: 24732

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 ProcedureStar Alignment
Aperture203 mm (8")
Counterweights(3) 11 lbs.
Exterior ColorOrion Grey Pearl
Focal Length1000 mm
Focal Ratiof/4.9
Hand Controller includedYes
Head DesignEquatorial
Highest Useful Magnification300x
Limiting Stellar Magnitude14.2
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 Length965mm
Tube Weight16.5 lbs
Warranty1 Year Warranty