Explore Scientific


Explore Scientific Explore Scientific Equatorial Mount and Tripod with PMC-Eight GOTO

Explore Scientific continued the refinement of their perennial-favorite mount to produce this upgraded version of their EXOS-2GT PMC-Eight Motorized EQ GoTo Mount that provides users with a precision platform built to support and move refractor optical tube assemblies (OTAs) of up to 152mm (6") aperture and reflectors of up to 203mm (8"), with a maximum payload capacity of 28 pounds.

Modifications include the use of the PMC-Eight motor drive system, upgraded micro-stepper motors with encoders, installing a direct-drive connection between the drive shaft and motor, and replacing the wired control system with a wireless antenna for remote use from tablets and smartphones running Windows mobile operating systems.

The mount features a Vixen-style dovetail saddle for compatible OTAs, and an integrated "bull's eye" bubble level to assist in leveling the mount during setup.


  • 28-pound payload capacity
  • Vixen-style dovetail saddle to mount compatible OTAs
  • 9.9-pound counterweight with 20mm-diameter shaft
  • Integrated "bull's eye" bubble level on mount base
  • Runs on eight user-supplied D-cell batteries
  • Northern Hemisphere illuminated polar axis scope to increase alignment precision

Electronics and Motor Features

  • Integrated 10/100 WiFi with full IP functionality enables direct connection to computers, smartphones, tablets, and networks for remote system control
  • Serial and standard ST4 auto-guiding ports
  • Fully compatible with any computer platform using an ASCOM-compliant software package
  • PMC-Eight motor control system with a scalable 8-CPU multi-processor array that allows control of multiple systems from single user interface
  • High-resolution Nema11 bipolar 0.09°, 400-count stepper motor
  • Ball bearings on both axes reduce vibrations and minimize backlash at all tracking and slew speeds
  • Strong and long-lasting fiberglass re-enforced neoprene belt
  • Belt-drive system with precision 45-groove and 10-groove timing pulleys