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Orion Telescopes
Orion HDX110 EQ-G GoTo Equatorial Mount with Tripod Pier
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  • Heavy-duty, observatory-class equatorial mount with pinpoint GoTo object location and precise tracking at an amazing price
  • High-capacity precision mount capable of supporting equipment loads up to 110 pounds
  • Features very precise +/- 3 arcsecond native tracking without software-assisted Periodic Error Correction (PEC)
  • Closed-loop GoTo electronics stay aligned even if you aim an attached telescope manually
  • Includes rock-solid pier mount with folding tripod legs for convenient portability

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Item #  10011

Take your stargazing sessions and astrophotographic pursuits to the next level of precision with the Orion HDX110 EQ-G GoTo Equatorial Mount with Tripod Pier. Offering exceptionally low, typically +/-3 arcsecond tracking without correction (PEC) and a massive 110-lb. instrument capacity, the big Orion HDX110 EQ-G Mount offers demanding observers and astrophotographers unprecedented accuracy and performance for the price.

This colossal telescope mount features robust, state-of-the-art electronics, including high-resolution, micro-stepped stepper motors and patented dual-encoder technology that allows both automated GoTo operation and manual slewing, without losing the GoTo alignment. In fact, once a successful alignment has been completed, you can loosen the RA and DEC clutches and manually reposition the mount and attached telescope while still maintaining the GoTo accuracy once the clutches are relocked. Permanent periodic error correction (PPEC) can be employed to improve the already impressive native periodic error even further, and the PEC is saved for future observing/imaging sessions - hence, "permanent".

HDX Head

A high-perfromance, heavy-duty mount made for discerning stargazers and astrophotographers.

The HDX110 EQ-G Mount head features 8.6" diameter (219.5mm) Right Ascension (RA) and Declination (Dec) worm wheels with 435 gear teeth and a thick RA and Dec shaft diameter of 55mm. This mighty mount is equipped with an autoguider port, buttery smooth latitude jackscrew with a 10-65 range, precise azimuth adjustment knobs (+/- 10 range from center), SNAP port (for DSLR shutter control), and more.

SynScan HC

Explore elusive sights every clear night with the accurate GoTo object locator.

The included SynScan GoTo controller houses a 42,000-object database, and offers a highly accurate, iterative polar alignment routine that doesn't require a polar alignment scope, or even a view of the star Polaris (an optional Orion Polar Alignment Finder Scope for HDX110 EQ-G is available for those who prefer using a dedicated alignment scope). Thanks to the HDX110's sophisticated dual-encoder GoTo system, you can manually reposition attached telescopes without losing GoTo alignment.


Huge 110-pound weight capacity handles heavy astrophotography setups with ease.

The rock-solid HDX110 EQ-G Mount can hold up to 110 pounds of equipment for super-stable support of visual or imaging telescopes and even the heaviest trains of astrophotography equipment. The mount head saddle is a wide, "Losmandy-style" clamp plate with three locking hand knobs for secure attachment. The combination of high weight capacity, accurate GoTo object location, and ultra-precise tracking makes the Orion HDX110 EQ-G one of the very best mounts available for astrophotography.


One or two telescopes? With the HDX110 EQ-G the choice is yours.

Thanks to its massive 110-pound weight capacity, the HDX110 EQ-G is easily capable of supporting two telescopes at once. This makes it possible to obtain two views of the night sky simultaneously, which really comes in handy when viewing the night sky with friends and family. The HDX110 Mount's impressive capacity also makes it possible to have an imaging telescope and visual telescope attached at the same time to both capture exposures and visually explore the photographed area of night sky all at once.


Includes tripod pier mount with folding legs for convenient portability.

The HDX110 EQ-G Mount's combination tripod and pier provides solid, unflinching support for the EQ head, which conveniently attaches with a single hand knob on the 5.5"-diameter pier. The substantial 2.4"-diameter steel legs fold inward for easy transport. Three heavy duty leveling pads are included, which can be placed under the tripod feet to level the mount on almost any terrain. The pier adjusts in height to place the EQ head's dovetail saddle 46" to 58" above ground (excluding leveling pads).

The HDX110 mount head weighs 55 lbs. - yes, that's hefty - but it's equipped with two large handles that make it easy to lift on and off the included tripod pier. The 1.25"-diameter stainless steel counterweight shaft threads securely into the HDX110 EQ-G mount head. The included tripod-pier weighs 64 pounds, and the counterweight shaft weighs 5.7 lbs. Total weight of the HDX110 Mount with Tripod Pier comes to 124.7 lbs. excluding counterweights. The two included counterweights weigh 22.3 lbs. each. An externally mounted polar scope for the HDX110 EQ-G is optionally available (sold separately).

The Orion HDX110 EQ-G GoTo Mount requires a 12V DC, 4A power supply or field-battery for motorized operation. A 12V DC power cable with auto-lighter plug and threaded connector to the mount is included.


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.

Product Support
Visit our product support section for instruction manuals and more
  • Best for imaging
    Deep sky
  • Astro-imaging capability
    Lunar, planetary & long exposure
  • Weight rating
    110 lbs.
  • Dovetail bar system
  • Motor drive compatibility
    Clock drive included
  • Computerized compatibility
    Go-To included
  • Alignment procedure
    3-star, 2-star, 1-star
  • Number of objects in database
  • Tracking rates
    Sidereal, Solar and Lunar
  • Motor speeds
    Max slew speed 3.3°/sec
  • Motor type
    Microstep driven stepper motors
  • Power requirement
    12-volt DC - 4A (tip positive)
  • PEC
  • Backlash compensation
  • Latitude range
  • Setting circles
    Electronic, via the hand controller
  • Polar-axis scope
    Sold separately
  • Counterweights
    Two 22 lb.
  • Available ports
    RS-232, autoguider
  • Tripod material
  • Tripod leg diameter
    2.38 in.
  • Counterweight bar length
    16 in.
  • Diameter of counterweight shaft
  • Height range of mount
    31.10 in. - 43.30 in.
  • Weight, mount/tripod
    124.7 lbs.
  • Weight, fully assembled
    124.7 lbs.
  • Additional included accessories
    Software assisted polar alignment, Dual encoders each axis, closed loop electronics, Leveling pads for tripod legs included
  • Other features
    DC power cables, PC interface RS-232 serial cable
  • Warranty
    One year

Orion HDX110 EQ-G GoTo Equatorial Mount head
Orion AZ/EQ Computerized GoTo Hand Controller
Counterweight shaft, 31.5mm diameter
Two 22.3 lb. counterweights
Jackscrew handle for altitude adjustment
Azimuth adjustment knobs
12V DC power cable with auto-lighter plug and threaded mount connector
RS-232 PC interface serial cable
Coil cable for GoTo controller
SNAP cable for select Canon cameras
Tripod leveling pads (3)
19mm combination wrench

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: $346.00
2 Day Delivery: $346.00
Next Day Delivery: $422.00


This product is available to ship Standard delivery within the 50 US states and US territories/protectorates address. Delivery is not available to APO/DPO/FPO addresses . Delivery is available to Canada.

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