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Appendix A – Technical Specifications
Advanced Series 31061 / 31062 11047 / 11048
C8-N C10-N
Specifications:
Optical Design
200mm (8.0") reflector 254mm (10") reflector
Focal Length
1000mm F/5 Parabola 1200mm F/4.7 Parabola
Finderscope
9x50 9x50
Mount
CG-5 Equatorial CG-5 Equatorial
Eyepiece
20mm - 1.25" (50x) 20mm – 1.25" (60x)
Accessory tray
Yes Yes
Tripod
2" Stainless Steel 2" Stainless Steel
Technical Specs
Highest Useful Magnification
480x 600x
Lowest Useful Magnification
29x 36x
Limiting Stellar Magnitude
14 14.5
Resolution: Rayleigh
.69 arc seconds .54 arc seconds
Dawes Limit
.58 arc seconds .46 arc seconds
Photographic Resolution
400 line/mm 425 line/mm
Light Gathering Power
843x unaided eye 1316x unaided eye
Field of View: standard eyepiece
1º .83º
Linear FOV (@1000 yds)
52.5 ft. 43.8 ft.
Optical Coatings - Standard
Aluminum Coating Aluminum Coating
Secondary Mirror Obstruction
2.2" 2.3"
by Area
8% 5%
by Diameter
28% 23%
Optical tube length
37 inches 45 inches
Telescope Weight
78 lbs 93 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