Focus Scientific

Sky-Watcher HEQ5 Synscan GPS Computerized Equatorial Mount

The Sky-Watcher HEQ5 Pro is an excellent robust mount that can handle a wide variety of telescope optical tubes. We commonly mount 80mm (3.1") to 235mm (9.25") optical tubes and they hold solidly.

If astrophotography interests you, so should this mount. "Pro" features, such as an ST4 compatible autoguider port, periodic error correction, polar finder, micro-step controller and stepper drives will drive you and your imaging to new heights of accuracy.

These mounts include the add-on GPS sensor module to automatically set your time, date, longitude and latitude based on the Global Positioning Satellites orbiting the Earth.


  • Saddle accepts 44mm (1.75") dovetail bars (compatible with Vixen, Sky-Watcher, Celestron CG-5, Orion and more)
  • Automatically track objects with accuracy.
  • Retractable counterweight shaft
  • Motors and controller neatly concealed leaving just 2 cables to plug in
  • GPS sensor module included

Mount Specifications

  • Mount Type: German Equatorial style
  • Polar Finder: Included, Northern/Southern
  • Analog setting circles
  • Heavy duty stainless steel tripod
  • Includes one 8" dovetail bar
  • Color: White
  • One year warranty

Computer Drive Specifications

  • SynScan computerized go-to system
  • Over 42,000 objects in the database including complete Messier, NGC, and IC catalogues
  • RS-232 port (can be used via USB-to-RS232 adapter, or Orion's Bluestar Bluetooth Wireless/USB adapter)
  • Flash-upgradeable firmware
  • GPS upgradeable (can be purchased as a package for $100 more)
  • ST4 compatible autoguider port
  • Periodic error correction (PEC)
  • Positioning Accuracy up to 1 arc minute
  • Accuracy enhanced by software collimation error (mount mechanical error) compensation
  • Brushless Stepper motors, 1.8° step angle, 64 micro steps, 12,800 microsteps for one full drive shaft rotation
  • Slewing speed up to 3.4°/sec (800X)
  • Guiding speed selectable from 0.25X, 0.50X, 0.75X, or 1X
  • Includes 12v car plug-in adapter
  • Requires 12v DC 2A (Tip positive)

GPS Specifications

  • Receiver Type: 12 parallel channel, L1 C/A code
  • Accuracy: Position 5m CEP, Velocity 0.1m/sec
  • Startup Time: < 10sec hot start, < 35sec warm start, < 50sec cold start
  • Reacquisition: 1sec
  • Sensitivity: -140dBm acquisition, -150dBm tracking
  • Update Rate: 1Hz
  • Dynamics: 4G(39.2m/sec2)
  • Operational Limits: Altitude < 18,000m or velocity < 515m/sec
  • Serial Interface: RS-232 level
  • Protocol #1 NMEA-0183 V3.01 4800 bps, 8, N, 1(Default)
  • Protocol #2 SynScan Position, Velocity & Time II Binary Message.
  • Input Voltage: 3.8V ~ 8.0V
  • Current Consumption: < 100mW
  • Compatible with NMEA compliant road map software
  • Build-in magnet to adhere to iron metal surface

Weights and Dimensions

  • Carrying capacity 13.6kg (30lbs) (not including counterweights)
  • Tripod Weight 5.6kg (12.3lbs)
  • Mount Weight 10kg (22lbs)
  • Counterweights 2 x 5.1kg (11lbs) = 10.2kg (22lbs)
  • Total Weight: 25.8kg (56.3lbs)
  • Mount Height 35cm (14")
  • Tripod Height 97-121cm (38-47")
  • Tripod Legs Outside Diameter 44.55mm (1.75") and 32mm (1.25")