Losmandy GM811G

Specifications: RA & DEC Axis

• All machined aluminum and stainless steel, black anodized.
• All stainless steel hardware.
• 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 tooth.
• Dual supported, ball bearing housed ground High Precision Brass Worm.
• Variable slip clutch, both axes. One knob per axis design.
• Porter Slip Ring Design
• 1.250” diameter aluminum shafts.
• Through the axis polar scope mounting, works in Northern and Southern Hemisphere. Polar scope optional.
• Instrument Weight Capacity 30-40 lbs (depending on length of optical tube)
• Equatorial head weight 21 lbs.

Altitude Adjustments

Fully locking, unique tangent arm design altitude adjustment, 0-68 degrees, large knob for easy alignment. Laser engraved latitude scale in 2 degree increments. 

Azimuth Adjustments

Single knob azimuth control, bi-directional +/- 8.5 degree. 

Setting Circle

3.500” diameter laser engraved setting circles, 6 minute R.A. / 2 degrees DEC. R.A. circle engraved for Northern and Southern Hemisphere. 

Saddle Plate

Dovetail saddle-plate fits both "D" Losmandy Style Dovetail or Vixen Style Dovetail. Allows for the interchanging of any tube assembly-reduces need for DEC. weights. 

Worm Drive

2.812” diameter, 7075 aluminum worm gear, 180 tooth. Dual supported, ball bearing housed ground High Precision Brass Worm. *(image shown with worm cover plate removed) 

Counterweight Shaft

Removable stainless steel 1-1/4 inch diameter weight shaft w/safety knob. 7 lb counterweight. 11 lb and 21 lb extra counterweights available. 

Folding LW Tripod Option

All machined aluminum, black anodized Tripod height, adjustable from 27” - 43” Folding leg design for easy transporting. Tripod weight 15 lbs. 

DRIVE ELECTRONIC GEMINI 2 GOTO

GEMINI 2 GOTO ELECTRONICS (G)

• 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 tactile membrane on the rear.
• Periodic Error Correction (PEC).
• Programmable DEC. Backlash Compensation (TVC).
• Control panel dimmer, Day and Night Modes.
• Accepts auto-guider systems.
• Northern and Southern Hemisphere operation.
• Tiltable control panel for easy access.
• Stand Alone System. No PC required
• Ethernet 10/100 with full IP function permits operation from anywhere using a browser, ASCOM, or app over the web or Serial Port
• DC Servos for imporved accuracy with higher torque than steppers
• Non-Volatile Memory and Real-Time Clock
• English, German, French & Spanish displays
• Over 40,000 objects
• USB ports; Virtual COM to PC, ASCOM or planetarium program.
• Firmware upgrade via internet
• Auto Guide Port (TTL)
• Dual 12-18V DC input/output (3.0A)