Appendix a – technical specifications – Celestron C100ED-R User Manual
Page 47
47
Appendix A – Technical Specifications
Advanced Series
21021 / 21022
21026 / 21027
Specifications:
Optical Design
80mm (3.2") refractor
100mm (4") refractor
Focal Length
600mm F/7.5
900mm F/9
Finderscope
6x30 9x50
Mount
CG-5 Equatorial
CG-5 Equatorial
Eyepiece
20mm – 1.25" (30x)
20mm – 1.25" (45x)
Accessory tray
Yes
Yes
Tripod
2" Stainless Steel
2" Stainless Steel
Technical Specs
Highest Useful Magnification
189x 236x
Lowest Useful Magnification
11x 14x
Limiting Stellar Magnitude
12 12.5
Resolution: Rayleigh
1.73 arc seconds
1.38 arc seconds
Dawes Limit
1.45 arc seconds
1.16 arc seconds
Light Gathering Power
131x unaided eye
204x unaided eye
Field of View: standard eyepiece
1.67º 1.3º
Linear FOV (@1000 yds)
87.5 ft
70 ft
Optical Coatings - Standard
Fully Multi-Coated
Fully Multi-Coated
Optical tube length
23" 34"
Telescope Weight
42 lbs
50 lbs
Advanced GT
Additional Specifications
Hand Control
Double line, 16 character Liquid Crystal Display; 19 fiber optic backlit LED buttons
Motor: Type
DC Servo motors with encoders, both axes
Max Slew Speed
3º/second
Software Precision
24bit, 0.08 arc sec calculation
Hand Control Ports
RS-232 communication port on hand control
Motor Ports
Aux Port, Autoguide Ports
Tracking Rates
Sidereal, Solar and Lunar
Tracking Modes
EQ North & EQ South
Alignment Procedures
AutoAlign, 3-Star Alignment, Quick Align, Last Align
Database
40,000+ objects, 400 user defined programmable objects.
Enhanced information on over 200 objects
Complete Revised NGC Catalog
7,840
Complete Messier Catalog
110
Complete IC Catalog
5,386
Complete Caldwell
109
Abell Galaxies
2,712
Solar System objects
9
Famous Asterisms
20
Selected CCD Imaging Objects
25
Selected SAO Stars
29,500
Total Object Database
45,492