GM-8 Equatorial Mount w/Gemini GOTO System

Specifications

R.A./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 stainless steel worm-heat treated and ground.
• Variable slip clutch, both axes. One knob design.
• 1.250” diameter stainless steel shafts.
• Fully locking, unique tangent arm design altitude adjustment, 0-64 degrees, large knob for easy alignment.
• Laser engraved latitude scale in 2 degree increments.
• Single knob azimuth control, bi-directional +/- 8.5 degree.
• 3.500" diameter laser engraved setting circles 6 minute R.A. / 2 degrees DEC. R.A. circle engraved for Northern and Southern Hemisphere.
• Porter slip ring design.
• 160 oz/in stepper motor, 1.0 arc sec. step.
• Spit Dovetail saddle-plate design. Accepts "D" series dovetail plates. Dovetail plate drops in and locks allowing for interchaning of any tube assembly, reducing the need for DEC weights.
• Removable stainless steel weight shaft w/safety knob.
• 7 lb counterweight.
• 11 lb and 21 lb extra counterweights available.
• Through the axis polar scope, works in Northern and Southern Hemisphere. Polar scope optional.
• Instrument weight capacity 30 lbs.
• Equatorial head weight 21 lbs.

Tripod

• All machined aluminum, black anodized, powder coated.
• Tripod height, adjustable from 27” - 43”
• Fold-up tripod design for easy transporting.
• Tripod weight 15 lbs.

Gemini GOTO System

• Very High Precision pointing to less than 1 arc minute
• Object search mode with user definable search radius
• Sidereal, Solar Lunar and King tracking rates
• User brightness adjustable LED display
• Up to 256 alignment stars permitted either side of the meridian
• Menus are accessed by the standard Losmandy 4 button hand paddle
• An optional deluxe hand paddle that repeats the Main panel display information
• RS232 serial port control by a PC using software such as The Sky, Guide 7.0 or Palm Planetarium
• T-Point (Software Bisque) Compatible
• Internal real time clock that displays, UTC, Local Mean Time an Sidereal Time
• Up to 10 degrees per second slewing (G-8)
• User definable Guiding, Centering Slewing and GOTO speeds 
• Permanent Periodic Error Correction
• Allows manual telescope movement with optional shaft encoders
• Southern and Northern Hemisphere operation
• Retains position information after power off (for permanent observatory use)
• EPROM upgradeable software