Losmandy G-11 Equatorial Mount w/ Digital Drive - No Tripod

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Losmandy G-11 Equatorial Mount w/ Digital Drive - No Tripod
Item # LO-G11SLT
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  • The Losmandy G11 Equatorial Mount is all black anodized, machined aluminium and stainless steel.
  • Includes dual-axis quartz electronic/DC drive corrector with PEC, 3 guiding rates and 4 tracking rates (including 32x HST).
  • The Losmandy G-11 Equatorial Mount has a weight capacity of 60 lbs.
  • Beautiful laser engraved latitude scales and setting circles.
  • Removable stainless steel weight shaft w/safety knob and 21 lb counterweight are included.


Losmandy G-11 Equatorial Mount w/ Digital Drive - No Tripod

If you're tired of messing around with equatorial mounts that just can't handle your observing and imaging requirements, the Losmandy G-11 is definitely worth a look. This heavy-duty mount is machined of aluminum and stainless steel, employs high precision gears, utilizes all stainless steel hardware and has a load capacity of 60 pounds.

The telescope attaches to the mount via a dovetail bar bolted to the bottom of the telescope. Before you attach the optical tube, make sure that the declination and right ascension clutch knobs are tight. This will ensure that the mount does not move suddenly while attaching the telescope.

Once the telescope is set up, you will need to point it at various locations to observe different objects. Unlike other mounts, the Losmandy mounts have a clutch system. To make rough adjustments, loosen the R.A. and DEC clutch knobs slightly and move the telescope in the desired direction. The R.A. clutch knob is near the Polar Axis Finder while the DEC clutch knob is at the top of the counterweight bar. How tight should the clutch knobs be? You set the clutch knobs to the friction you like. When you want to move the telescope, all you do is grab the telescope and move it to its new position.

Losmandy G-11 Equatorial Mount Specifications...

  • 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.
  • 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

Your Losmandy GM 11 telescope comes equipped with setting circles that translate the celestial coordinates into a precise location for the telescope to point. The daily motion of the Sun across the sky is familiar to even the most casual observer. This daily trek is, of course, not the Sun moving as early astronomers thought, but the result of the Earth’s rotation. This rotation also causes the stars to do the same, scribbing out large circles as the Earth completes one rotation.

In order for the telescope to track the stars, you must meet two criteria, First, you need a drive motor that moves at the same rate as the stars. A polar axis finder is offered as an optional accessory. The second thing you need is to set the telescope’s axis of rotation so that it tracks in the right direction. Since the motion of the stars across the sky is caused by the Earth’s rotation about its axis, the telescope’s axis must be made parallel to the Earth’s. The polar axis is the axis around which the telescope rotates when moved in right ascension. This axis points in the same direction even when the telescope moves in right ascension.

Although there are several methods of polar alignment, you will never use all of them during one particular observing session. Instead, you may use only one if it is a casual observing session. Or, you may use two methods, one for rough alignment followed by a more accurate method if you plan on doing astrophotography.

Losmandy Product Number: G11SLT
Additional Information

Additional Information

Head Design Equatorial
Tripod or Pier Included? No
GPS Included? No
Electronics Included Motorized - Dual Drive
Manufacturer Losmandy
Warranty 1 Year Warranty
Hand Controller Included Losmandy Motor Controller
# of Counterweights Included 1
Weight of Counterweights 21 lbs.
Tracking Rates Lunar, Sidereal, Solar
Objects in Database N/A
Mount Special Features Dimmer On Control Panel, Illuminated Control Panel
Saddle Width D Series
Weight Capacity 60 lbs.
Power Supply Included DC Battery Adapter
Tracking Modes EQ North, EQ South
Latitude Range 14º - 64º
Weight of Head 36 lbs.
Included Items

Included Items

  • Losmandy G11 Equatorial Mount
  • Digital Drive System Controller
  • Tilt-able Control Panel w/ Dimmer
  • 21 lb. Counterweight
  • Removable Stainless Steel Counterweight Shaft w/ Safety Knob
  • Dovetail Saddle Plate
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