Manualsbrain.com
  1. Manuals
  2. Brands
  3. Celestron
  4. 11055
  5. User Manual

Celestron 11055 User Manual

Download
Page of 80
20     •     Assembling Your CM-1100
Below is pertinent technical information on your Celestron CM-1100 telescope that you
may find useful.
OPTICAL TUBE:
OPTICAL TUBE:
OPTICAL TUBE:
OPTICAL TUBE:
OPTICAL TUBE:
CM-1100
CM-1100
CM-1100
CM-1100
CM-1100
CM-1400
CM-1400
CM-1400
CM-1400
CM-1400
Optical System:
Schmidt-Cassegrain
Schmidt-Cassegrain
Aperture:
11" (279mm)
14" (356mm)
Focal Length:
2800mm (110.2")
3910mm (153.9")
F/ratio:
f/10
f/11
Highest Useful Power Magnification:
660x
840x
Lowest Useful Power Magnification:
42x
50x
Resolution (arc seconds):
0.41
0.33
Photographic  Resolution:
200 lines/mm
182 lines/mm
Light Gathering Power:
1593x
2581x
Limiting Visual Magnitude:
14.7
15.3
Near Focus
with eyepiece:
60'
175'
with camera:
60'
225'
Optical Tube Length:
25"
32"
Weight
Optical Tube:
27.5  lbs.
45  lbs.
DEC AXIS:
DEC AXIS:
DEC AXIS:
DEC AXIS:
DEC AXIS:
•
All machined stainless steel and aluminum
•
5.625 diameter precision bronze worm gear, 180 tooth.  AGMA quality 10.
•
.4375 diameter precision 303 stainless steel worm.  AGMA quality 10.  Dual
bearing supported.
•
One inch diameter solid shaft, centerless ground
•
Two 2” preloaded Tapper Roller Bearings, pre-loading the shaft.
•
Bearing preload is independent of clutch tension.
•
Slip Clutch-Variable friction two knob adjustment
•
5.25” laser engraved setting circle, 1 degree increments.
•
182 oz/in Stepper Motor - .50 arc second steps
•
Removable stainless steel counterweight shaft
•
Dovetail saddle plate – allowing for interchanging of any  tube assembly
•
Instrument Weight of 60 Lbs
POLAR AXIS:
POLAR AXIS:
POLAR AXIS:
POLAR AXIS:
POLAR AXIS:
•
All machined stainless steel and aluminum
•
5.625 diameter precision bronze worm gear, 180 tooth.  AGMA quality 10.
•
.4375 diameter precision 303 stainless steel worm.  AGMA quality 10.  Dual
bearing supported.
•
One inch diameter solid shaft, centerless ground
•
Two 2” preloaded Tapper Roller Bearings, pre-loading the shaft.
•
Bearing preload is independent of clutch tension.
•
Slip Clutch-Variable friction two knob adjustment
•
5.25” driven laser engraved setting circle,
 
5 minute increments
(Northern Hemisphere only)
•
182 oz/in Stepper Motor - .50 arc second steps
•
Latitude adjustment 20 to 65 degrees with counterweights.  Total travel is 13 to
65 degrees.
•
Azimuth adjustment, bi-directional +/- 7 degrees
Technical
Technical
Technical
Technical
Technical
Specifications
Specifications
Specifications
Specifications
Specifications