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Picture of  G-11 w/Gemini GOTO

G-11 w/Gemini GOTO

Manufacturer : Losmandy
Part Number : G-11 Gemini

G-11 with the Gemini Goto sytem. Precision made in the U.S.A by Hollywood General Machining with software developed in Germany the Gemini, servo based, GOTO system, delivers a high torque servo based computerized drive system never before seen in high quality amateur telescope mountings. Gemini allows both stand alone and PC based control of Losmandy's G8, G-11 and HGM200 series mounts.

Precision made in the U.S.A by Hollywood General Machining with software developed in Germany the Gemini, servo based, GOTO system, delivers a high torque servo based computerized drive system never before seen in high quality amateur telescope mountings. Gemini allows both stand alone and PC based control of Losmandy''''s'' G8, G-11 and HGM200 series mounts.

SPECIFICATION: R.A. / DEC. AXIS

  • All machined aluminum and stainless steel, black anodized.
  • All stainless steel hardware.
  • One 3.750” diameter needle thrust bearing.
  • One 2.000” diameter needle thrust bearing.
  • Two 1.500” diameter needle bearings.
  • 5.625” diameter, 7075 aluminum worm gear, 360 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, 14-64 degrees, large knob for easy alignment. (8-68 degrees with small modification).
  • Laser engraved latitude scale in 2 degree increments.
  • Single knob azimuth control, bi-directional +/- 8.5 degree.
  • 5.000” diameter laser engraved setting circles, 4 minute R.A., vernier reading to 1 minute / 1 degrees DEC., vernier reading to 0.1 degree. R.A. circle engraved for Northern and Southern Hemisphere.
  • Porter slip ring design.
  • 160 oz/in stepper motor, 0.5 arc sec. step.
  • Dovetail saddle-plate allows for the interchanging of any tube assembly-reduces need for DEC. weights.
  • Removable stainless steel weight shaft w/safety knob.
  • 21 lb counterweight.
  • 7 lb and 11 lb extra counterweights available.
  • Through the axis polar scope, works in Northern and Southern Hemisphere. Polar scope optional.
  • Instrument weight capacity 60 lbs.
  • Equatorial head weight 36 lbs.

HD TRIPOD

  • All machined aluminum, black anodized, powder coated.
  • Tripod height, adjustable from 33” - 48” 
  • Removable leg design for easy transporting.
  • Tripod weight 35 lbs.

DUAL-AXIS ELECTRONICS

  • Diamond push button pattern.
  • R.A. and DEC. reversing switches.
  • Three guiding rates; 30%, 50% and 2x sidereal rate.
  • Three setting rates; 4x, 8x, 16x sidereal rate.
  • Quartz tracking rates: sidereal, solar, lunar, king.
  • Periodic Error Correction (PEC).
  • Programmable DEC. Backlash Compensation (TVC).
  • Control panel dimmer.
  • Accepts auto-guider systems.
  • Northern and Southern Hemisphere operation.
  • 12 volt DC - 500ma power use.
  • Tiltable control panel for easy access.
  • Small hand control box for comfortable use.


All heights are to top of tripod. Add 10” @ 34 degrees to center of Dec.-R.A. junction. Add 7” from Dec.-R.A. junction to top of saddle.



Current rating is 4.00. Total votes 1.
 
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$3,195.00
Product reviewsCustomer picturesProduct Features
Excellent quality and value
After using the G-11/Gemini for more than one year, I continue to be impressed with its high quality engineering and manufacture. Although the Gemini control system takes a little practice, after a few sessions it becomes easy to use, including the five button hand controller about which some complain. The mount is very accurate and stable. The Gemini has many unique functions such as allowing automatically parking of the mount at he end of a viewing session and providing automatic object searching. I am using the G-11 for my Tak FS-152 and C-14. It handles both scopes easily.

From: | Created on: 10/16/2009 1:48:44 PM

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Rock solid EQ mount
Having used various Fork type mounts, my first experience was with the G-11 Gemini...Well made, very good quality mechcanically and the go-to and tracking are exceptional...The hand controller takes a little getting used to but this mount can easily be sync to your personal lap top and works extremly good with either application...My only wish was the additional knobs etc...which I feel should be included as they round this mount out nicely!  

From: | Created on: 10/16/2009 1:48:41 PM

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Good, but could be Great.
This mount is capable of holding more than stated for visual use only, which is how I use it.  Have C14 and accessories and have had in decent breeze without terrible problems.  Hand controller stinks.  4 buttons for everything means pushing them over and over to preform all functions and selecting objects. Other low mark is that you must do several additional aligns to get accurate on both sides of Meridian.  GOTO very good after that.  Overall good but could be great with a few changes.

From: | Created on: 10/16/2009 1:48:38 PM

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