iOptron GEM45 NUC GEQ GoTo Mount with iPolar, LiteRoc Tripod & Case

iOptron GEM45 NUC GEQ GoTo Mount with iPolar, LiteRoc Tripod & Case

£2,389.00✓ 2 year warranty


2x in stock shipped 1-2 working days

About this product

Model:  iop_gem45_nuc
Part Number:  7603AN

New GEM45 with Intel NUC mounting adapter. 

Need more versatility from an Equatorial mount without cable tangling? The iOptron GEM45-NUC mates with an Intel NUC minicomputer (thickness ≤38mm) at the front of the dovetail saddle seamlessly via the cable management system. 

iOptron NUC series mount info

The GEM45 is the first of iOptron's next generation German equatorial mounts. 

Using experience gained during the development of their CEM series, iOptron have removed unnecessary weight resulting in a portable 7.2 kg / 15.8 lb mount with an impressive 2.8 payload-to-mount weight ratio. 

With its integrated electronic polar scope (iPolar) polar alignment is a breeze, even when the pole star is obscured. 

IOptron's reliable ultra-quiet stepper motors provide precise pointing and tracking together with low power consumption. Large levers make it easy to engage the drive gears into place, even when wearing gloves. 

Integrated internal cable management means there is little chance of your cables becoming snagged and a new, patent pending, Universal Self-Centering Saddle (USCS) accommodates both Losmandy and Vixen style dovetail plates. 

The LiteRoc 1.75" tripod delivers high stability in a lighter, more compact package. 

Other features include computerised GOTO with a 212,000+ object library (includes star identification) GPS and Wi-Fi (requires optional iStarFi adapter). 




  • Next generation German Equatorial Mount
  • Suitable for both visual observation and astrophotography
  • Maximum payload of 45 lbs (20 kg) with a mount weight of only 15.8 lbs (7.2 kg)
  • Easy to use quick-lock gear clutches
  • Integrated iPolar electronic polar finder
  • Low periodic error (< ± 7 arc seconds)
  • Permanent periodic error correction (PPEC)
  • Ultra-quiet precision stepper motors for precise GOTO and accurate tracking
  • Go2Nova® 8407+ controller with Advanced GOTONOVA® GOTO Technology and built-in heater
  • Integrated ST-4 autoguiding port
  • 32-channel Global Positioning System (GPS)
  • USB communication port
  • Integrated cable management system
  • New, patent-pending iOptron universal saddle
  • All metal, CNC machined body with red/black anodised surfaces
  • Optional WiFi for mount control via SmartPhone/Tablet/Computer
  • All new LiteRoc 1.75" tripod with improved stability and leg locks

Go2Nova Hand Controller 8407

  • 200,000+ object database
  • 8 line, 21 character back lit large screen LCD
  • Low temperature operation as low as -20ºC
  • User friendly interface
  • 9 speed slew control with quiet mode
  • Large object database
  • Serial port for firmware upgrade

What's in the box

Supplied in two boxes. 

  • GEM45 NUC mount head
  • CW shaft
  • 1x 5kg / 11lb Counterweight
  • GO2Nova 8407+ hand controller with cord. 
  • GPS Module
  • RJ11 Cable x2
  • RS232-RJ9 Cable
  • USB Cable
  • Alignment Peg
  • 1.75" tripod and accessory Tray
  • Optional Hard Case


Mount German Equatorial Mount
Max payload* 45 lbs (20 kg), exclude counterweight
Mount weight 15.8 lb (7.2 kg)
Payload/Mount weight 2.78
Structure Material All metal, CNC machined
Exterior Finish Anodised red/black
Latitude adjustment range 14º ~ 68º
Azimuth adjustment range ± 6º
Tracking accuracy (PE)** <±7 arcsec
Period 400 sec
Worm diameter Φ17mm, Brass
Right Ascension worm wheel Φ110mm, 216 teeth, zero backlash
Declination worm wheel Φ110mm, 216 teeth, zero backlash
Right Ascension axis shaft Φ45mm steel
Declination axis shaft Φ45mm steel
Right Ascension bearings Φ68mm
Declination bearings Φ68mm
Counterweight shaft Φ28X280 mm, Stainless Steel (1.2 kg)
Counterweight 11lbs (5kg) x1 (when purchased with a tripod)
Motor Precision stepper motor, 1.8º/128X micro-step
Motor resolution 0.08 arcsec (200 PPS)
Transmission Synchronous belt
Hand Controller Go2Nova® 8407+, 8 line 21 character LCD
Star Database 212,000+, star identification
Power DC 12V, 5A
AC adapter 100V ~ 240V (included)
Power consumption 0.6A(Tracking), 0.9A(GOTO)
Power-down memory Yes
Polar scope Internal iPolar TM electronic polar scope
Meridian treatment Stop (0-20° pass), flip
Zero position Automatic zero search
Dovetail saddle 6" Losmandy-D & Vixen dual saddle
Max slew speed 4.5°/sec (1080X)
Guiding port ST-4
Communication port USB
WiFi External (optional)
Cable Management DC12V (3A), DC (5A), GUIDE, USB 
For NUC: DC 19V, LAN and USB
Tripod 1.75" Stainless Steel (~8kg)
Hard case Optional
Operation temperature -10ºC ~ 40ºC
Warranty Two year limited

* OTA size and length dependent
** Measured with encoder, 400 seconds

Downloads / Manuals


iOptron GEM45 Quick Start Manual


Coming soon

iOptron Telescope ASCOM Driver:

Coming soon

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