Explore Scientific EXOS 2 GT Equatorial Mount with PMC-Eight GoTo Computer Drive


Availability: More on the way

Wireless PMC-Eight GoTo

28 Pound Payload Capacity

Vixen Style Dovetail
Our Product #: EXOS2GT8
Explore Scientific Product #: ES-EXOS2GTPMCT3-00
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Product Description

Explore Scientific has made GoTo mounts more readily available for astronomers with the release of their EXOS-2 GoTo series.  This particular version comes with thier advance wireless PMC-Eight Open GoTo electronics.  This particular system can be controlled by your Windows 8.1 or higher  based PC, tablet, or even your smartphone if you install the free ExploreStar app. The mount will also work with ASCOM Compatible software and ES ASCOM driver. The mount uses belt-driven stepper motors, which helps make the drive extremely quiet while slewing.  The RA and Dec use ball bearings to help keep backlash to a minimum and the mount has nine different tracking speeds.  The saddle of the EXOS-2 is a Vixen style and the mount itself has a payload capacity of 28 pounds.

The stainless steel tripod will help keep your mount, and payload, steady through the evening.  The spreader bar not only provides a convient place to store a couple of eyepieces during your observing session, but it also helps provide stability as it cinches up against the 2" stainless steel tripod legs.  The mount comes standard with a 9.9 pound counterweight, and you may purchase others if your needs change.  The tripod itself extends from 26.8" to 42.5".

The mount itself weighs in at 33 pounds.  The head is 11 pounds and the tripod is 12.2 pounds.

This video is of Jerry Hubble's presentation about the system at the Northern Virginia Astronomy Club's (http://www.novac.com) Almost Heaven Star Party in 2018.

Explore PMC-Eight Open GoTo Electronics

Interface with the PMC-Eight using the free ExploreStars app and your smart device, which can easily locate over 80,000 objects, or use your own ASCOM-compliant sky software
Operates with Windows® 8.1 or higher PC, Tablet, or Smartphone (not included)
2-Channel Multi-Processor Micro-controller
Wireless Ethernet 10/100 with full IP function
ST4 Autoguide port


The PMC-Eight has taken GOTO technology to a whole new level by utilizing a smart electronic design that transcends the industry standard single processor. The PMC-Eight has eight CPUs that operate independently of one another to focus on defined functions. This delegation of tasks among the processors results in a system that offers superior responsiveness, efficiency and reliability. This multiple processor approach is a revolutionary one that pays off with exceptional performance.


Created specifically for the PMC-Eight, the ExploreStars app streamlines the observing experience and serves as an ideal introduction to the many benefits of our OpenGOTO system. ExploreStars is all-encompassing and has an intuitive nature that makes it simple and quick to align your telescope, navigate the stars and learn specifics about tens of thousands of celestial objects. This dynamic app is fueled by a database that is routinely updated to ensure it remains a relevant resource.

Welcome to ExploreStars!

Designed specifically for the PMC-Eight, the intuitive ExploreStars app will streamline your observing experience by making it easy to align your equipment, navigate the stars and learn specifics about tens of thousands of celestial objects. It also leaves room for manual operation.


Although Explore Scientific offers their own operating app (ExploreStars), the PMC-Eight is all about providing options – not only in what you view but in how you get there. To meet the versatile needs of our astronomy community, they have made the PMC-Eight compatible with the industry standard ASCOM interface. Their specific driver allows you to use the ASCOM-powered planetarium software of your choosing to run the PMC-Eight either wirelessly or through a wired connection. Through ASCOM, you can access a number of outstanding star map software/telescope control platforms.

Here is a list of most of the ASCOM software packages available for use with the Explore Scientific with PMC-Eight mounts: ACP; APT; AST / ATC & Ricerca (Omega Lab); AstroArt; AstroMB; Cartes du Ciel / Sky Chart; CCD AutoPilot; DeepSky; Deepsky Planner; DFM Engineering; Earth Centered Universe Pro; EasySky; Eye and Telescope; Project Pluto; Hallo Northern Sky; Maxim DL; MaxPoint; PinPoint Astrometric; Prism; Sequence Generator Pro; Sidereal Technology; The Sky; SkyMap Software; SkyTools 3; Star Atlas PRO; Sky Observer; StarryNight; Stellarium; Virtual Moon Atlas; and WorldWide Telescope.


The night sky is full of possibilities, and so is the PMC-Eight. In an unprecedented move, Explore Scientific has made the coding that powers their precision motion control system open source. By putting the building blocks into the hands of programmers, they believe we will unlock the full potential of the PMC-Eight OpenGOTO and discover unexplored uses. They don’t want to set limits and force users to conform to our vision. Instead, they want to give you the access you need to make this system your own.

Join the OpenGOTO community!

One of the most revolutionary aspects of the PMC-Eight OpenGOTO system is undoubtedly its open source software. With their precision motion control system, you can create a unique observing experience and find your own inspiration in motion.

The PMC-Eight was specifically designed to allow you to create your own vision about how to use the system. they put an emphasis on accessibility so you can unleash the full potential of this extraordinary system. The result is complete access to the coding that drives the PMC-Eight OpenGOTO.

Knowledge Base Information! Click this link for answers to your many questions.

Tech Details

Weight 65
Warranty 2 years


Review by:
This is a great mount at a great price. The best deal out there if economics is a concern. (Posted on 10/20/2019)
Review by:
I own the previous version of this mount without the PCM8 controller. Although the mount I have has a few issues with the goto function and the ASCOM function has been disabled in the controller because of an issue, despite these things it works really well once aligned with the celestial pole correctly. I do try to do more wide field shots with my setup so it is more forgiving. (Posted on 1/12/2019)
Review by:
Purchased this mount and, once delivered, it was easy to setup and align. Windows laptop connected and was easy to operate. Appears to be some difficulty getting the Android tablet connected and still working on that. Have not tried with iOS interface. Mount seems well made and solid, handles camera, long lens and scope easily. I have not had long enough to evaluate the durability of the system. (Posted on 12/29/2018)
Review by:
I have a previous version of this mount and it is rock solid and easy to polar align. When the hand controller died, the Kent in customer service was quick to offer a free replacement despite the mount being out of warranty. Definitely recommend the company and their products. (Posted on 12/22/2018)
Review by:
I purchased this mount in anticipation of the compatibility with IOS architecture through a developer app. When this comes up live it will be a game-changer. The mount is solid and carries a good payload. While not an Atlas mount, it gives solid performance with the belt drives. I look forward to many years of solid service from this mount. (Posted on 12/1/2018)
Review by:
I love this mount
It's a hopped up CG5 great polaris
Ilove it
Great price (Posted on 11/29/2018)
Review by:
This is the best mount for the beginner astronomer to get a well built mount with the power and flexibility of the PCM8 controller at a crazy low sale price. (Posted on 11/15/2018)
Review by:
With the help of this mount I have been able to greatly increase the exposure time on my images with no worry of star trailing and its built in polar scope allows for quick and precise allignment. (Posted on 11/4/2018)
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