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Appendix A. Technical Specifications
Mount
Center-balanced Equatorial Mount (CEM)
Payload
31.8kg (70 lbs), exclude counterweight*
Mount weight
13.6kg (30 lbs)
Payload/Mount weight ratio
2.33
Material
All metal
Latitude adjustment range
0°~ 65°
Azimuth adjustment range
± 4°
Right Ascension worm wheel
Φ151mm, 248 teeth, M=0.6, zero backlash
Declination worm wheel
Φ151mm, 248 teeth, M=0.6, zero backlash
Worm
Φ21.2mm
PEC
Permanent PEC
PE
<±3.5 arcsec p-p**
Worm period
348 sec
Counterweight shaft
Φ 28, 415 mm (SS, 1.9kg)
Counterweight
9.5 kg (21 lbs)
Mount base size
Φ152mm
Motor drive
Stepper motor
Resolution
0.07 arc seconds
Slew speed
1×,2×,8×,16×,64×,128×,256×,512×,MAX(~3.5°/sec, 900X)
Power consumption
0.6A(Tracking), 0.8A(GOTO)
Power requirement
12V DC 5A
AC adapter
100V ~ 240V with 5.5mm/2.5mm DC plug (included)
Polar scope
iPolar
TM
Internal electronic polar scope
Hand Controller
Go2Nova® 8407+,212,000+ objects database, star recognition
Meridian treatment
Stop (0-10° pass), auto flip
Zero position
Automatic zero search
Park position
Horizontal, vertical, current, alt/azi input
Level indicator
Yes
Dovetail saddle
8" Losmandy D & Vixen
GPS
Yes
Autoguide port
ST-4
Communication port
USB 3.0, Wi-Fi for
CEM70G
, USB2.0 for CEM70
PC computer control
Yes (ASCOM)
Cable management
CEM70G: 2xDC12V (3A), 3xUSB3.0, 1xDC in/2xDC out, iPort.
1X USB3.0 input for mount, iGuider, iPolar and more
CEM70: 2xDC12V (3A), 3xUSB2.0 (2 powered),
1xDC in/1xDC out, iPort
Guiding scope/camera
iGuider
TM
Built in guiding scope and camera (
CEM70G
only)
Aluminum carrying case
Yes
Operation temperature
-20°C ~ +40°C
Pier/tripod
Optional LiteRoc
TM
tripod or Tri-pier/Pier
Warranty
Two year limited
*These are only guidelines. Some telescopes are very long or very big for their weight and may require a larger mount.
Remember also that imaging requirements are more rigid than visual observation.
**Measured with encoder on the bench, 348 seconds.
