The iOptron GEM45 is a high-precision German equatorial mount that brings serious tracking performance to a compact, travel-friendly platform. This complete mount package—part number 7603AN—includes the GEM45 head with NUC-ready mounting plate, a LiteRoc tripod, and a custom hard case, making it an ideal all-in-one solution for imaging and visual observing alike.
With a 45-pound payload capacity, integrated electronic polar alignment, and support for mounting a mini PC directly to the head, this mount is a smart, scalable choice for astrophotographers looking to streamline their setup without sacrificing performance.
Serious Capacity, Surprising Portability
The GEM45 mount head weighs just 17.4 pounds (7.9 kg), yet it supports up to 45 pounds (20.4 kg) of equipment—more than enough for long-focus refractors, astrographs with filter wheels, or dual imaging rigs. This power-to-weight ratio makes it ideal for field use, whether you're imaging from your backyard or a remote dark sky site.
Integrated NUC Plate for Onboard Automation
This version of the GEM45 includes a factory-installed mounting plate for Intel NUC-class mini PCs, letting you securely attach your imaging computer directly to the mount. This feature is a dream for cable management: no trailing USB or power lines to snag during slewing, and no awkward Velcro mounts or third-party brackets. It's a seamless solution for users who control their imaging sessions through NINA, Sequence Generator Pro, or other automation software.
iPolar Makes Alignment Easy
Forget polar scopes and neck cramps—the GEM45 features iOptron’s built-in iPolar electronic polar alignment tool, which works through your laptop or tablet interface. Even if Polaris isn’t visible, iPolar delivers sub-arcminute alignment precision with fast feedback and intuitive software. You'll be imaging faster and guiding better with minimal fuss.
Precision Worm Gear Drive with GoTo
The GEM45’s low backlash, high-torque stepper motors and precision-machined worm gears deliver native periodic error of ±7 arcseconds or better, no encoders required. This means your mount is ready for guided astrophotography straight out of the box.
The included Go2Nova 8407+ hand controller provides accurate GoTo slewing with a database of over 212,000 objects. From deep sky to solar system targets, you'll be tracking smoothly and reliably all night long.
Rugged and Stable LiteRoc Tripod
The LiteRoc tripod included in this package offers the best of both worlds: lightweight portability and strong stability. With aluminum construction and 2-inch stainless steel legs, the LiteRoc minimizes flex and vibration while remaining easy to transport and quick to set up. Precision-machined metal parts and steel leg clamps provide reliable support for the GEM45's full payload capacity.
Dual Saddle and Clean Wiring
The GEM45 features a dual dovetail saddle that supports both Vixen-style and Losmandy D-style plates, giving you full flexibility in mounting options. At the saddle, you'll find USB and 12V power ports, perfectly positioned to connect cameras, filter wheels, and mini PCs with minimal cable mess. These ports rotate with the mount head, ensuring no cable snags or wrap-ups during tracking or slewing.
Custom Hard Case Included
iOptron includes a foam-lined hard case designed specifically for the GEM45 head—perfect for storage or transport. It’s a great way to protect your investment when traveling or between observing sessions.
Specifications
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Payload Capacity: 45 lbs (20.4 kg), excluding counterweights
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Mount Head Weight: 17.4 lbs (7.9 kg)
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Tripod Weight (LiteRoc): 13.6 lbs (6.2 kg)
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Drive System: Worm gear with stepper motors
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Periodic Error: ≤ ±7 arcseconds
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Polar Alignment: iPolar electronic alignment camera (built-in)
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GoTo System: Go2Nova 8407+ with 212,000+ object database
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Saddle Type: Dual (Vixen and Losmandy D-style)
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Ports: USB, 12V DC input, ST-4 autoguider, saddle-mounted USB and power ports
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NUC Mounting Plate: Included (pre-installed on saddle)
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Included in Package: GEM45 mount head, LiteRoc tripod, NUC plate, hard case
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Not Included: Counterweights (sold separately)
Observing Tip
A well-balanced system starts at the mount—and with the GEM45’s support for a direct-mounted NUC, you can fully automate your sessions with fewer cables and less setup time. For imagers using software like NINA or Voyager, this design eliminates headaches and improves long-term reliability—especially in remote or robotic observatory setups.
