Appendix a - technical specifications – Celestron NexStar 6 SE User Manual
Page 39
Appendix A - Technical Specifications
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NexStar 6SE (#11068)
NexStar 8SE (#11069)
Design
Schmidt Cassegrain Optical
Design
Schmidt Cassegrain Optical
Design
Aperture
6 inches (150mm)
8 inches (200mm)
Focal Length
60 inches (1500mm)
80 inches (2032mm)
F/ratio of the Optical System
10
10
Primary Mirror: Diameter
Coatings
150mm
Starbright XLT®
100mm
Starbright XLT®
Secondary Mirror Spot Size
Secondary Obstruction
2.2"
37% by diameter; 14% by area
2.5"
35% by diameter; 12% by area
Corrector Plate: Material
Coatings
Optical Quality Crown Glass
Starbright XLT®
Optical Quality Crown Glass
Starbright XLT®
Highest Useful Magnification
354x
480x
Lowest Useful Magnification (7mm exit pupil)
21x
29x
Resolution: Rayleigh Criterion
Dawes Limit
.92 arc seconds
.77 arc seconds
.68 arc seconds
.57 arc seconds
Light Gathering Power
459x unaided eye
843x unaided eye
Near Focus standard eyepiece or camera
~ 20 feet
~ 25 feet
Field of View: Standard Eyepiece
.8º
.64º
Linear Field of View (at 1000 yds)
42 feet
33.6 feet
Magnification: Standard Eyepiece
60x
81x
Optical Tube Length
16 inches
17 inches
Weight of Telescope
21 Lbs.
24 Lbs.
Weight of Tripod
9 lbs
9 lbs
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Input Voltage
12 V DC Nominal
Batteries Required
8 AA Alkaline
Power Supply Requirements
12 VDC-750 mA (Tip positive)
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Motor: Type
Resolution
DC Servo motors with encoders, both axes
.26 arc sec
Slew speeds
Nine slew speeds: 5º /sec, 3º /sec, 1º/sec, .5/sec, 32x, 16x, 8x, 4x, 2x
Hand Control
Double line, 16 character Liquid Crystal Display
19 fiber optic backlit LED buttons
Fork Arm
Cast aluminum, with integrated hand control receptacle
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Software Precision
16 bit, 20 arc sec. calculations
Ports
RS-232 communication port on hand control
Tracking Rates
Sidereal, Solar, Lunar and King
Tracking Modes
Alt-Az, EQ North & EQ South
Alignment Procedures
SkyAlign, Auto Two-Star, Two-Star, One-Star, Solar System Align
Database
200 user defined programmable object.
Enhanced information on over 200 objects
Total Object Database
+40,000