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Losmandy GM-8 Equatorial Mount with LW Tripod and Gemini 2 Go-To System - GM8G


Losmandy GM8G Equatorial Mount with LW Tripod and Gemini Go-To System

The Losmandy GM8G Equatorial Mount and Tripod with Gemini Go-To Drive is one of the most precise and finely crafted telescope mounts available today. The Losmandy GM-8 Mount is a beautifully machined mount made of aluminum and stainless steel. This mount provides astrophotographers with a solid platform to mount their smaller-to-mid-size Schmidt Cassegrains and Refractors along with the other instruments that constitute their astrophotography rig.

Losmandy GM-8 Equatorial Mount Highlights:

  • The Losmandy GM-8 Equatorial Mount has a 30 lb weight capacity

  • Laser engraved latitude scales and setting circles

  • Includes OPW one-piece worm block on both axes

  • The Losmandy GM-8 Mount Head weighs 21 lb

  • This GM8G includes Gemini GoTo System

  • This version of the GM8G includes the Losmandy LW Tripod

  • The Tripod itself weighs 15 lb

Losmandy GM-8 Specifications:

  • Servo motor driven Right Ascension and Declination axes

  • 1.250" diameter aluminum shafts

  • All machined aluminum and stainless steel, black anodized

  • All hardware used is stainless steel

  • One 2.100" diameter needle thrust bearing

  • One 2.000" diameter needle thrust bearing

  • Two 1.500" diameter needle bearings

  • 2.812" diameter, 7075 aluminum worm gear, 180 teeth

  • Dual-supported, ball bearing housed brass worm; worm gear is precision ground

  • Variable slip clutch, both axes with one-knob tension design

  • Fully locking, unique tangent arm design altitude adjustment, 6°-68°, large knob for easy alignment

  • Laser engraved latitude scale in 2° increments

  • Single knob azimuth control, bi-directional ± 8.5°

  • 3.50" diameter laser engraved setting circles, 6 minute R.A., / 2° Dec., R.A. circle engraved for Northern and Southern Hemisphere

  • Porter slip ring design

  • DC Servo motors for improved accuracy with higher torque than steppers

  • Dovetail saddle-plate allows for the interchanging of any tube assembly; this reduces need for Dec weights

  • Removable stainless steel weight shaft w/safety knob

  • Includes one 7 lb counterweight

  • 11 lb and 21 lb extra counterweights available as options

  • Through-the-axis Polar Scope capability, works in Northern and Southern Hemisphere; Note: the Polar Scope is optional

  • Instrument weight capacity: 30 lb

  • Equatorial head weight: 21 lb

The Losmandy Gemini 2 Go-To System is a servo motor based computerized positioning system for the Losmandy Mounts. Losmandy has updated the Gemini GoTo System to include a newly enhanced CPU and increased memory. Perhaps most impressive is the interactive color touch screen that comes with the Losmandy Gemini 2 Go-To System.

The Gemini 2 Go-To System works with the Losmandy, GM8, G11 and Titan Mounts. This system is incredibly precise and the choice of astro photographers world wide. Precise object tracking is achieved as a result of the servo motor system Losmandy utilizes. The servo motor system runs with a continuous and smooth rotation, for better tracking. Further, the Losmandy system has an elevated level of torque which allows it to produce slewing rates of up to 8° per second with the GM-8 mount, 6° per second with the G-11 and 5° per second with the Titan Mount. The Losmandy Gemini system is a great instrument for use in the field because it can be run as a stand-alone system. With a 40,000 object database and an illuminated Color LCD touch screen, this mount is a pleasure to use. Powering the unit is simple; all you need is a 3A, 12-18 Volt DC power supply. Check out our list of specifications and features pertaining to the Losmandy Gemini 2 Drive System:

Losmandy Gemini 2 Go-To System Features:

  • Full Color Graphic Touch Screen clearly displays all functions

  • Classic four-button pattern for guiding, centering, moving, and slewing on both the touch screen and on a tactile membrane on the rear surface

  • Support for the original four-button controller

  • Can be used on all Losmandy GM8, G-11, & Titan mounts

  • Custom mount support using the Programmable Gear Rate function

  • 0.5 arcsec positional accuracy

  • DC Servos for improved accuracy, with higher torque than stepper motors

  • GPS-compatible with optional receiver

  • Stand-alone system: No PC is required for operation

  • English, German, French, & Spanish displays

  • Ethernet 10/100 with full IP function permits operation from anywhere using a browser, ASCOM, or app over the web or serial port

  • Non-Volatile Memory and Real-Time Clock

  • Over 40,000 objects stored in the database

  • USB ports: Virtual COM to PC, ASCOM or planetarium program

  • Port F: multi-function serial port; for A/D Input or Output

  • Firmware upgrade via internet

  • PEC: Periodic error correction

  • Auto-Guide port (TTL)

  • Dual 12~18 VDC input/output (3.0 A)

  • Tiltable control panel, for easy access during operation

Gemini 2 Celestial Database Includes:

  • 168 BSL

  • 303 Combined_Constellation_Stars

  • 5437 IC

  • 1125 LBN

  • 1787 LDN

  • 110 Messier Objects

  • 8290 NGC (New General Catalog)

  • 1143 PN

  • 17636 SAO (Smithsonian Ap. Obs.)

  • 313 Sh2

  • 223 Southern_Constellation_Stars

  • 3988 WDS

The CPU on the Gemini 2 System uses a mounted PC board as its base. This is a proven setup and is one of the most reliable in the field today. The main board has auto-guider and accessory ports, for full remote control (via the web) of the system from a computer from anywhere in the world. The Gemini 2 uses a Meade LX200 inspired command set. Clock and location information can be updated through a Losmandy GPS accessory that is sold separately.

Losmandy GM-8 LW (Light Weight) Tripod Specifications:

  • All machined aluminum, black anodized

  • Tripod height, adjustable from 27" - 43"

  • Extremely sturdy and rigid when assembled, for superior astrophotography

  • Folding leg design for easy transporting

  • Tripod (only) weight: 15 lb

The Losmandy GM-8 Mount and Tripod with Gemini 2 Go-To Drive is a top-performing astronomical instrument with an updated, modern drive. If you are an astrophotographer looking for a solid mount with a 30 lb capacity, to support your telescope, the Losmandy GM-8 with Gemini 2 Go-To Drive is for you.

You can find instructions on Gemini 2 Screen Calibration here.

If you would like to upgrade your GM-8 to the latest tucked motors, check out this version of the Losmandy GM-8G.