Celestron
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OPTICAL TUBE INFO: | |
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Optical Design | Schmidt-Cassegrain |
Aperture | 203.2mm (8") |
Focal Length | 2032mm (80") |
Focal Ratio | f/10 |
Focal Length of Eyepiece 1 | 40mm (1.57") |
Magnification of Eyepiece 1 | 51x |
Finderscope | 9x50 Finderscope with quick release bracket |
Star Diagonal | 1.25" Star Diagonal |
Optical Tube | Aluminum |
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 | 238mm (9.37") |
Optical Tube Weight | 42 lbs (19.1 kg) with mount |
Dovetail | None |
MOUNT INFO: | |
Mount Type | Computerized Altitude-Azimuth Dual Fork Arm |
Height adjustment range (includes mount and tripod) | 1295.4mm - 1422.4mm (51" - 66") |
Tripod leg diameter | 50.8mm (2") Stainless Steel |
Mount Head Weight | 42 lbs (19.1 kg) with optical tube |
Accessory Tray | Yes |
Tripod Weight | 19 lbs (8.6 kg) |
Slew Speed | 9 slew speeds - max speed 5°/second |
Tracking Rates | Sidereal, Solar and Lunar |
Tracking Modes | Altazimuth, EQ North and EQ South |
GPS | Internal 16 channel |
Dovetail Compatibility | none |
Number of Auxiliary ports | 2 Aux ports (Hand Control can use any of the Aux ports) |
Autoguide port | Yes |
USB Port | Yes, on hand control |
Power Requirements | 12 VDC-1.5A (Tip positive) |
Motor Drive | DC servo motors |
Alignment Procedures | Sky Align, Auto Two-Star Align, Two-Star Align, Solar System Align, EQ North Align & EQ South Align |
Periodic Error Correction | Yes |
Computerized Hand Control | 2 line x 18 character backlit Liquid Crystal Display, 19 LED backlit buttons, USB 2.0 port for PC connection |
NexStar+ Database | 40,000+ objects, 100 user defined programmable objects. Enhanced information on over 200 objects |
Software | Celestron's Starry Night Special Edition Software, SkyPortal App |
Total Telescope Kit Weight | 61 lbs (27.6 kg) |
Included Items | Mount/OTA | Tripod | Accessory Tray | 40mm Eyepiece | 1.25" Star Diagonal | 50mm 9x50 Finderscope with Bracket | Instruction Manual |