Yes, our inventory is accurate!
Free Ground Shipping Available (CONUS only)
- Max payload 45 lbs
- Mount head weight 15.8 lbs
- Precision stepper motors
- Integrated iPolar Electronic pole finder
- Large and easy to use Quick-lock clutches
- PPEC
- Go2Nova 8407+ Controller with built-in heater
- Built-in 32-channel GPS
- Integrated ST-4 Auto-guide port
- Self-centering saddle accepts Vixen or Losmandy style dovetails
- New LiteRoc 1.75" Tripod with improved stability and leg locks - weight = 15 lbs.
Manufacture |
iOptron |
Model |
GEM45 |
Mount Type |
German Equatorial Mount (GEM) |
Payload (excl. CW) |
20.4 kg (45 lbs), exclude counterweight |
Mount Weight |
7.2 kg (15.8 lbs) |
Payload/Mount Weight |
2.8 |
Structure Material |
All metal, CNC machined |
Exterior Finish |
Anodized red/black |
Latitude Adjustment Range |
0~68° |
Azimuth Adjustment Range |
±6° |
Tracking Accuracy (PE) |
< ±7 arcsec / < 0.25 arcsec RMS (EC) |
Period |
400 sec |
Worm diameter |
17 mm |
Right Ascension Worm Wheel |
216 teeth, Ø110 mm, zero backlash |
Declination Worm Wheel |
216 teeth, Ø110 mm, zero backlash |
Right Ascension Axle |
Ø45 mm, steel |
Declination Axle |
Ø45 mm, steel |
Right Ascension Bearings |
Ø68 mm |
Declination Bearings |
Ø68 mm |
Counterweight Shaft |
Ø20 x 410 mm (SS, 1 kg) |
Counterweight |
5 kg (11 lbs) x1 (with tripod package only) |
Mounting Base Diameter |
Ø125mm |
Motor |
precision stepper motor, 1.8°/128 micor-step |
Motor Resolution |
0.08 arcsec (200 PPS) |
Hand Controller |
Go2Nova 8407+; 8 line 21 character LCD |
Star Database |
359,000+, star identification |
Power |
DC 12V, 5A |
Power Consumption |
0.6A (tracking), 0.9A (GOTO) |
Polar Scope |
Internal iPolar eletronic polar scope |
Meridian treatment |
Stop (0-10° pass), flip |
Zero position |
Automatic zero search |
Dovetail saddle |
iOptron Universal saddle, 5" |
Max slew speed |
4.5°/sec (1080x) |
PEC |
PPEC/Real time PEC (GEM45EC) |
Guiding Port |
ST-4 |
Communication Port |
USB |
GPS |
YES |
WIFI |
External (optional adapter) |
Cable Management |
DC12V (3A), ST4,USB |
Tripod |
1.75"/15 lbs. |
Hard case |
GEM45EC standard, GEM45 optional |
All Configurations:
- GEM45 Mount Head
- Hard Case for Mount Head
- iPolar Electronic Polar Scope
- Counterweight shaft
- Go2Nova 8407 Hand Controller with cord
1.75" Tripod & Hard Case Also Includes:
- 11 lbs counterweight x 1
- Tripod with 1.75" diameter legs
The GEM45-NUC is ready to mate with Intel® NUC minicomputer (thickness≤38mm) at the front of dovetail saddle seamlessly with the cable management system.