Appendix A - Technical Specifications - Celestron NexStar 80GTL Instruction Manual
Celestron nexstar 80gtl instruction manual
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Also See for NexStar 80GTL:
- Communication protocol manual (8 pages) ,
- Installation instructions (1 page) ,
- Quick setup manual (2 pages)
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APPENDIX A - TECHNICAL SPECIFICATIONS
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Design
Aperture
Focal Length
F/ratio of the Optical System
Objective Coatings
Highest Useful Magnification
Lowest Useful Magnification
Resolution: Rayleigh Criterion
Dawes Limit
Light Gathering Power
Field of View: Standard Eyepiece
Linear Field of View (at 1000 yds)
Eyepiece Magnification:
Optical Tube Length
Electronic Specifications
Input Voltage
Maximum
Minimum
Batteries Required
Power Supply Requirements
Mechanical Specifications
Motor: Type
Resolution
Slew speeds
Hand Control
Fork Arm
Software Specifications
Software Precision
Ports
Tracking Rates
Tracking Modes
Alignment Procedures
Database
Total Object Database
NexStar 80GTL
Refractor
80mm
900mm
F/11
Fully Coated
189x
11x
1.73 arc seconds
1.45 arc seconds
131x unaided eye
1.4º
74 feet
36x (25mm)
90x (10mm)
35 inches
12 V DC Nominal
18 V DC Max.
8 V DC Min.
8 AA Alkaline
12 VDC-750 mA (Tip positive)
DC Servo motors with encoders, both axes
.26 arc sec
Nine slew speeds: 4º /sec, 2º /sec, 1º/sec, .5 /sec, 32x, 16x, 8x, 4x, 2x
Double line, 16 character Liquid Crystal Display
19 fiber optic backlit LED buttons
Cast aluminum
16 bit, 20 arc sec. calculations
RS-232 communication port on hand control
Sidereal, Solar and Lunar
Alt-Az, EQ North & EQ South
AutoAlign, 2-Star Alignment, Quick-Align
25 user defined programmable object.
Enhanced information on over 100 objects
4,033 Objects
30
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