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Innovative ideas applied to a time tested design, the iOptron® GEM45 next generation German equatorial mounts. A sharp looking CNC body is the first indicator that the GEM45 is a top quality mount in both form and function.
Utilizing experiences gained during the development of our CEM series, we were able to remove unnecessary bulk giving the GEM45 an incredible 2.5 payload to mount weight ratio. This compact 17.5lb mount can precisely GOTO an object and track with up to 45 lbs of gear onboard. With its integrated electronic polar scope (iPolarTM), polar alignment is a snap, even when the pole star is obscured. Large levers on the quick-lock drive engagement system make it easy to snap its drive gears into place even when wearing gloves. There is little chance of your cables getting snagged with the GEM45's internal advanced cable management system. A 6" dual saddle accommodates Losmandy-D and Vixen style dovetail plates. GEM45 mounts utilize reliable stepper motor drive systems with our low power consumption technology. Our new LiteRoc 1.75" tripod delivers rock solid stability in a lighter, more compact package. A 212,000+ object library with star identification, GPS, Wi-Fi (requires optional iStarFi adapter) are a few of the desirable features standard on a GEM45 mount.
iPolar included. Tripod and counterweight are not included.
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Mount
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German Equatorial Mount
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Max payload*
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45 lbs (20 kg), exclude counterweight
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Mount weight
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17.4 lb (7.9 kg)
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Payload/Mount weight
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2.53
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Structure Material
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All metal, CNC machined
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Exterior Finish
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Anodized red/black
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Latitude adjustment range
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14º ~ 68º
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Azimuth adjustment range
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± 6º
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Tracking accuracy (PE)**
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<±7.5 arcsec
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PEC
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PPEC
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Period
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400 sec
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Worm diameter
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Φ17mm, Brass
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Right Ascension worm wheel
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Φ110mm, 216 teeth, zero backlash
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Declination worm wheel
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Φ110mm, 216 teeth, zero backlash
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Right Ascension axis shaft
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Φ45mm steel
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Declination axis shaft
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Φ45mm steel
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Right Ascension bearings
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Φ68mm
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Declination bearings
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Φ68mm
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Counterweight shaft
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Φ28X280 mm, Stainless Steel (1.2 kg)
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Counterweight
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Not included
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Motor
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Precision stepper motor, 1.8º/128X micro-step
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Motor resolution
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0.08 arcsec (200 PPS)
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Transmission
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Synchronous belt
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Hand Controller
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Go2Nova® HC, 8 line 21 character LCD
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Star Database
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212,000+, star identification
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Power
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DC 12V, 5A (5.5mm/2.5mm plug)
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AC adapter
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100V ~ 240V (included)
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Power consumption
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0.6A(Tracking), 0.9A(GOTO)
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Power-down memory
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Yes
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Polar scope
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Internal iPolar
TM electronic polar scope
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Meridian treatment
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Stop (0-20° pass), flip
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Zero position
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Automatic zero search
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Dovetail saddle
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6" Losmandy-D & Vixe dual saddle
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Max slew speed
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4.5°/sec (1080X)
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Guiding port
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ST-4
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Communication port
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USB
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GPS
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Yes
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WiFi
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External (optional)
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Cable Management
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DC12V (3A), ST4,USB
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Tripod
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Not included
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Hard case
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Optional
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Operation temperature
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-10ºC ~ 40ºC
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Warranty
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Two year limited
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* OTA size and length dependent
** Measured with encoder on the bench, 400 seconds
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Features
- German equatorial mount with innovative features
- Idea for both visual observation and astrophotography
- Maximum payload of 45 lbs (20 kg) with the mount weight of only 17.5 lbs (7.9 kg)
- Easy to use quick-lock gear clutches
- Integrated iPolarTM electronic polar finder
- Low periodic error (< ± 7.5 arc seconds)
- Permanent periodic error correction (PPEC)
- Precision stepper motor for precise GOTO and accurate tracking
- Go2Nova® hand controller with Advanced GOTONOVA® GOTO
Technology and built-in heater
- Integrated ST-4 autoguiding port
- 32-channel Global Positioning System (GPS)
- USB communication port
- Cable management system
- 6" Losmandy-D & Vixen dual dovetail saddle
- All metal, CNC machined with red/black anodized
- Optional WiFi for mount control via SmartPhone/Tablet/Computer
- Optional all new LiteRoc 1.75" tripod with improved stability and leg locks
- NEW iOptron subsidized TheSky Imaging Edition
Shipping Contents
- iOptron® GEM45 mount
- Go2Nova® Hand Controller
- Stainless steel counterweight shaft
- Internal iPolar electronic polar scope
- GEM45 GPS module
- AC adapter (100V-240V)
- 2X coiled control Cable (6P6C RJ11 to RJ11, straight wired)
- USB cable
- Quick Start Guide
- Counterweight and tripod NOT included
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