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# 1454010 Price: € 29,750.00
(Price incl. German VAT excl. shipping)

Important note:

GM 4000 HPS II GoTo-Mount

GM 4000 HPS II GoTo-Mount

HPS stands for High Precision and Speed and the mount is an advancement of the known GM 2000 QCI of 10Micron with the same proven mechanics, however, less load-carrying capacity than this - and with it highly transportable

The GM 4000 HPS reaches a Satellite tracking and positioning speed from 5 degrees / sek. with an average positioning accuracy <20" and a tracking accuracy of approx. 1"/15min (peak to peak).

The GM 4000 HPS disposes, in addition, of high-precision Absolut-Encoders on both axes which opens absolutely new possibilities. The mount never loses its orientation, even if one axis is shifted by hand. Also after a power failure no new Alignment is necessary. 

10Micron has modernized the well proven parallactic / equatorial mount. By "Dual Axis Tracking", small errors in the polar axis and other disturbing parameters, such as deflection of the telescope tube, are compensated fully automatically during tracking.

Maximum payload: 150 kg of pure instrument weight (counterweights are to be attached in required number, in addition) Optimum payload: 125 kg of instrument weight (counterweights are to be attached in required number, in addition)


Standard configuration of all HPS Mounts

  • 4-Lines Stand-Alone Keypad with metal housing and heated screen (#1452059)
  • embedded Computer-Controller with Linux Managment System for complete remote use of the mount incl. all functions such as satellite tracking, moon feature and more
  • Interface: RS232, Ethernet, Wi-Fi
  • Connectors for: GPS, Autoguider, Keypad, Mount, Aux and Remote Switch
  • Connection cables, counterweight bar
  • PC Software: Virtual Keypad, Clock Sync Tool, Multi Mount, ASCOM Driver
  • Instruction manual
  • optional incl. ColdTemp upgrade in case the mechanics and electronics of the mount have to work flawlessly under hard environmental conditions available. Please note that this can only be integrated into the mount during master assembly and can not be upgraded: GM4000 HPS II incl. ColdTemp Upgrade
HPS Series
Recommended Accessories


Mount Type
German Equatorial Mount
Weight (mount w/o acc.)
~ 125 kg – 276 lbs
Instrument Payload Capacity (kg)
150 kg – 330 lbs
Latitude Range
20° – 70°
Azimuth fine adjustment range
+/− 10°
Counterweight shaft
60 mm diameter, stainless steel, weight 13 kg – 29 lbs
a.r. 85mm / dec. 80mm diameter, alloy steel
Pre-loaded tapered roller bearings
Worm wheels
a.r. 430 teeth, 330 mm diameter, B14 bronze dec. 315 teeth, 244 mm diameter, B14 bronze
32mm diameter, tempered alloy steel, grinded and lapped
2 axes AC servo brushless
Power supply
24 V DC
Power consumption
~ 1.5 A while tracking ~ 5 A at maximum speed ~ 6 A peak
Go-to speed
Adjustable from 2°/s to 8°/s
Transmission system
Backlash-free system with timing belt and automatic backlash recovery
Pointing accuracy
< 20" with internal 25-stars software mapping - max.100stars; possibility to use the Model Maker software for automated alignment operation.
Average tracking accuracy
~ 1" typical for 15 minutes ~ 0,6" RMS with internal 25-stars software mapping and compensation of system flexures and polar alignment errors
Security stop
+/− 30° past meridian in r.a. (software) +/− 45° past meridian in r.a. (mechanical)
Communication ports
RS–232 port; GPS port; autoguide ST-4 standard port; Ethernet 10/100/1000 port
Stars: by Common Names, Bayer designation, Flamsteed designation, Bright Star Catalogue, SAO, HIP, HD, PPM, ADS, GCVS. Deep-sky: M, NGC, IC, PGC ,UGC limited up to mV = 16. Solar system: Sun, Moon, planets, asteroids, comets, artificial satellites. Equatorial and altazimuth coordinates. User defined objects. Quick slewing positions recalls for frequent focusing or useful operation.
Firmware features
User defined mount parking positions, 2stars and 3stars alignment function, up to 100 alignment stars for modeling, correction of polar alignment and orthogonality errors, estimate of average pointing error, storage of multiple pointing models, sidereal, solar and lunar tracking speed adjustable on both axes, declination-based autoguide speed correction, adjustable horizon height limit, pointing and tracking past meridian, assisted electronic balance adjustment, automatic (ClockSync proprietary software) manual or GPS time & site coordinates synchronization, leap seconds support and full accounting for the UT1-UTC timescale, configurable atmospheric refraction, direct Baader dome control via RS-232, network settings, comets and asteroids filter, multi-language interface. Remote Assist via Internet connection with dedicated server.
Keypad control
Rugged keypad with metal housing and reliable professional micro switches, Large graphic display – heated for operation under lowest temperatures, dimmable display and keyboard with back-lit keys, five information menu lines for coordinates, object information and symbols showing mount status and active external connections and accessories. All the functionality of the mount is available through the keypad without requiring an external PC
PC control
Remote control via RS-232, Ethernet, proprietary 10Micron ASCOM driver, LX200 compatible protocol, update of firmware and orbital elements of comets, asteroids and artificial satellites via RS-232 or Ethernet, PC virtual KeyPad control panel via RS-232 or Ethernet, Integrated Wi-Fi for connection with smartphones and tablets and any wireless network

Scope of supply


Information provided without guarantee