Optical Design: |
Schmidt-Cassegrain |
Aperture: |
203.2mm (8") |
Focal Length: |
2032mm (80") |
Focal Ratio: |
f/10 |
Focal Length of Eyepiece 1: |
25mm (.98") |
Magnification of Eyepiece 1: |
81x |
Finderscope: |
StarPointer™ red dot finderscope (No Warranty) |
Star Diagonal: |
1.25" Star Diagonal |
Highest Useful Magnification: |
480x |
Lowest Useful Magnification: |
29x |
Limiting Stellar Magnitude: |
14 |
Resolution (Rayleigh): |
0.69 arc seconds |
Resolution (Dawes): |
0.57 arc seconds |
Light Gathering Power (Compared to human eye): |
843x |
Secondary Mirror Obstruction: |
64mm (2.5") |
Secondary Mirror Obstruction by Diameter: |
31% |
Secondary Mirror Obstruction by Area: |
9.77% |
Optical Coatings: |
Starbright XLT |
Optical Tube Length: |
432mm (17") |
Optical Tube Diameter: |
232mm (9.1") |
Optical Tube Weight: |
12 lbs (5.4 kg) |
Dovetail: |
CG-5 Dovetail bar |
MOUNT SPECIFICATIONS |
Mount Type: |
Computerized Altitude-Azimuth Single Fork Arm |
Instrument load capacity: |
12 lbs (5.44 kg) |
Height adjustment range (includes mount and tripod): |
965.2mm - 1422.4mm (38" - 56") |
Tripod leg diameter: |
38.1mm (1.5") Stainless Steel |
Mount Head Weight: |
11 lbs (5 kg) |
Accessory Tray: |
Yes |
Tripod Weight: |
9 lbs (4.08 kg) |
Slew Speeds: |
9 slew speeds - max speed 5°/second |
Tracking Rates: |
Sidereal, Solar and Lunar |
Tracking Modes: |
Alt-Az, EQ North & EQ South |
GPS: |
N/A |
Dovetail Compatibility: |
CG-5 dovetail |
Number of Auxiliary ports: |
1x Aux port |
Autoguide port: |
Yes |
USB port: |
Yes, Hand Control input |
Power Requirements: |
8-AA batteries (not included) | 12 VDC-750 mA (Tip positive) |
Motor Drive: |
DC servo motors |
Alignment Procedures: |
SkyAlign, 1-Star Align, 2-Star Align, Auto 2-Star Align, Solar System Align, EQ North / EQ South Alignment (EQ align requires an equatorial wedge) |
Periodic Error Correction: |
No |
Computerized Hand Control: |
Double line, 18 character Liquid Crystal Display with 19 fiber optic backlit LED buttons |
NexStar+ Database: |
40,000 objects, 200 user defined programmable objects. Enhanced information on over 200 objects |
Software: |
Celestron's Starry Night Special Edition Software, SkyPortal App |
Total Kit Weight: |
24 lbs (10.88 kg) |