10Micron GM 4000 HPS II Equatorial Mount

Starting Price: $30,892.00
Price as Configured: $30,892.00
Brand: 10Micron Astro Technologies / SKU: 10M-4010
10Micron products are serviced in the United States by Deep Space Products. We are proud to be the only certified servicer and support provider for 10Micron products in the U.S.

Please inquire for availability.

Please note that shipping is calculated when the mount is completed and ready to ship. It is not included in the checkout price.
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10M-4100 - 10Micron Wooden Shipping Pallet-Box for 4000HPS Mounts
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10M-4199 - 10Micron Mandatory shipping Kit for 4000HPS Mounts
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10M-4C - 10Micron Special Cold Temperature Option for 4000HPS Mounts
About This Product
The GM4000 and AZ4000 mounts are available in a special version for very low temperature operations. This option allows the Mount to operate until -30°C (-22° F) and features the following special modifications: - Special low-temperature lubricants certified until -60°C or lower - Special copper wiring, silicone sheathed - Electronic components certified for temperatures down to -40°C - Endurance tested at low temperatures in our laboratory All 10Micron mounts feature special systems in their mechanics in order to compensate thermal variations. This option is intended for brand new mounts to be ordered; contact us for already delivered mounts.
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Price as Configured: $30,892.00
We cannot sell 10Micron products to customers outside of North and South America
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The GM4000HPS mount is built for observatories with instrumentation up to a weight of 330 lbs. (150 kg) (excluding counterweights). It is ideal for remote observation sites, and its loading capacity allows for mounting instruments like 300 mm diameter refractors, 400 mm diameter Newton reflectors, 600 mm diameter Cassegrains and so on. Movements are driven by two servo brushless motors, with timing belt reduction having zero backlash. Both axes feature a classic worm – worm wheel pairing. The worm wheels are made of bronze (B14), with a diameter of 330 mm and 430 teeth in right ascension, and a diameter of 244 mm and 315 teeth in declination. The worms are made of alloy tempered steel with a diameter of 32mm and 24 mm respectively. The axes themselves are made of alloy steel, with a diameter of 85mm right ascension and 80mm declination for maximum rigidity.


The electronics are housed in an independent control box, easily removable. The connections of the mount and keypad feature security lock screws. The mount can be controlled using the included keypad, without connecting an external PC. The keypad is built in order to maintain the maximum readability in all lighting conditions. Both the display and the ergonomic keys, allowing for the use of gloves, feature a red backlight. A heater keeps the display warm for usage below freezing temperature.

The keypad is built in order to maintain the maximum readability in all lighting conditions. Both the display and the ergonomic keys, allowing for the use of gloves, feature a red backlight. A heater keeps the display warm for usage below freezing temperatures.

The mount can be controlled using the most common software packages by connecting it to a PC with the RS-232 serial port or the Ethernet connection, via the 10micron ASCOM driver or the Meade compatible command protocol. Furthermore, a dedicated software (also included with the mount) can be used to create a “virtual keypad” replicating exactly the functions of the physical keypad. The RS-232 port can also be used to control an external dome. This flexibility makes the mount an ideal mount for observatories and remote observing sites.

The object database contains many star catalogs and deep-sky objects up to the 16th magnitude. Solar system objects can be tracked so that their motion is compensated with respect to the stars. You may load orbital elements of comets, asteroids and artificial satellites into the mount, so that these objects can be tracked directly using the keypad (without any external PC). Pointing is made accurate through the usage of a model containing up to 100 stars, which allows for the correction of the classical polar alignment and conic errors, and also of the most important flexure terms of the optical tube. In this way, it is possible to obtain pointing accuracies of the order of 20 arcseconds RMS. The same model can be used in order to obtain the maximum tracking accuracy, compensating also for the atmospheric refraction (depending on the local atmospheric pressure and temperature).

A series of auxiliary functions is provided to help the user with quickly aligning the mount to the celestial pole. You may also save and recover the alignment data of different observing sessions. This function is very useful if you have many instruments in different setups, each one requiring different flexure corrections. Tracking through the meridian, a typical problem with german mounts, is solved allowing for tracking for up to 30° past the meridian (configurable), in both directions. In this way, any object can be tracked for at least four hours.

Tracking through the meridian, a typical problem with German equatorial mounts, is solved allowing tracking for up to 30° past the meridian (configurable), in both directions. In this way, any object can be tracked for at least four hours.

The tracking accuracy makes autoguiding unnecessary for many uses. The absolute encoders on both axes allow the mount to obtain a typical tracking error below 1 arcsecond. It is possible to autoguide using the ST4-compatible port or through the serial/Ethernet connection, with a guide rate configurable from 0.1x to 1x. The guide rate can be automatically corrected for the declination of the target so that there is no need for recalibrating the autoguide when observing at different declinations.

Other functions of the mount are designed in order to obtain the maximum flexibility in the most usage conditions. The mount can be switched on and off using the hand pad, power switch on the control box, or the dedicated relay connector on the control box panel. You can use the electronic balance functions in order to balance your instrument without unlocking the clutches. The mount can be parked in different user-defined positions. An external dome can be controlled directly using the RS-232 serial port, avoiding the need for using a dedicated external PC. Once configured with your instrument parameters, the firmware is able to make all the calculations required for positioning the dome slit in front of your optical tube, for almost all instrument configurations.

10Micron mounts are used in the field as well as in remote observatory sites, in educational observatories as well as in the extreme climates of northern Canada and the Atacama Desert.

The 10Micron GM3000HPS includes:

  • GM3000HPS mount head with absolute encoders on both axes
  • Control box and stand-alone hand pad with internal modeling and control software
  • Counterweight shaft
  • Mount cables
  • AC/DC power supply
  • Integrated WiFi