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Appendix A - Technical Specifications
Optical Specification
Design
Aperture
Focal Length
F/ratio of the Optical System
Primary Mirror:
Material
Coatings
Central Obstruction
Corrector Plate:
Material
Coatings
Highest Useful Magnification
Lowest Useful Magnification
(7mm exit pupil)
Magnification: Standard Eyepiece (40mm Pl)
Resolution: Rayleigh Criterion
Dawes Limit
Light Gathering Power
Near Focus w/ standard eyepiece or camera
Field of View: Standard Eyepiece
: 35mm Camera
Linear Field of View (at 1000 yds)
Optical Tube Length
Weight of Telescope
Weight of Tripod
Electronic Specifications
Input Voltage
Maximum
Minimum
Power Supply Requirements
GPS
Mechanical Specifications
Motor: Type
Resolution
Slew speeds
Hand Control
Fork Arm
Gears
Bearings
Optical Tube
Software Specifications
Software Precision
Ports
Period Error Correction
Tracking Rates
Tracking Modes
Alignment Procedures
Database
Complete Revised NGC Catalog
Complete Messier Catalog
Complete IC Catalog
Complete Caldwell
Abell Galaxies
Solar System objects
Famous Asterisms
Selected CCD Imaging Objects
Selected SAO Stars
CPC 800 - #11073
Schmidt-Cassegrain Catadioptric
8" (203.2mm)
2032mm
10
Fine Annealed Pyrex
Starbright Coatings - 5 step multi-
layer process
Optional:Starbright XLT Coating
2.5"
Optical Quality Crown Glass
A-R Coatings both sides
480x (~4mm eyepiece)
29x (~70mm eyepiece)
51x
.68 arc seconds
.57 arc seconds
843x
~25 feet
.9º
1º x .68º
47 ft.
17"
42 lbs
19 lbs
12 V DC Nominal
15 V DC Max.
9 V DC Min.
12 VDC-1.5A (Tip positive)
Internal 16 channel
DC Servo motors with encoders, both axes
.1406 arc sec
Nine slew speeds: 3º /sec, 2º /sec, .5º/sec, 64x, 16x, 8x, 4x, 1x, .5x
Double line, 16 character Liquid Crystal Display
19 fiber optic backlit LED keypad
Dual Fork tine cast aluminum with detachable HC holder
5.625", precision aluminum gears on both axes, 180 tooth. Brass worm gear
9.8" Azimuth Bearing
Aluminum
24 bit, .08 arc sec. calculations
RS-232 communication port on hand control, Autoguider Port, 2 Auxiliary Port
Permanently programmable
Sidereal, Solar, Lunar
Alt-Az, EQ North & EQ South
Sky Align, Auto Two-Star Align, Two-Star Align, Solar System Align, EQ North
Align & EQ South Align
40,000+ objects, 99 user defined programmable objects.
Enhanced information on over 200 objects
7,840
110
5,386
109
2,712
9
20
25
29,500
46
CPC 925 - #11074
Schmidt-Cassegrain Catadioptric
9.25" (235mm)
2350mm
10
Fine Annealed Pyrex
Starbright Coatings - 5 step multi-
layer process
Optional:Starbright XLT Coating
3..35"
Optical Quality Crown Glass
A-R Coatings both sides
555x (~4mm eyepiece)
34x (~70mm eyepiece)
59x
.59 arc seconds
.49 arc seconds
1127x
~40 feet
.78º
.9º x .6º
41 ft.
22"
58 lbs
19 lbs
CPC 1100 - #11075
Schmidt-Cassegrain Catadioptric
11" (279mm)
2800mm
10
Fine Annealed Pyrex
Starbright Coatings - 5 step multi-
layer process
Optional:Starbright XLT Coating
3.75"
Optical Quality Crown Glass
A-R Coatings both sides
660x (~4mm eyepiece)
40x (~70mm eyepiece)
70x
.50 arc seconds
.42 arc seconds
1593x
~100 feet
.65º
.72º x .50º
34.5 ft.
23"
65 lbs
19 lbs
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