| Optical Design: |
Schmidt-Cassegrain |
| Aperture: |
280mm |
| Focal Length: |
2800mm |
| Focal Ratio: |
f/10 |
| Focal Length of Eyepiece 1: |
40mm(1.57") |
| Magnification of Eyepiece 1: |
70x |
| Finder scope: |
9X50 |
| Star Diagonal: |
1.25" Star Diagonal |
| Optical Tube: |
Aluminum |
| Highest Useful Magnification: |
660x |
| Lowest Useful Magnification: |
40x |
| Limiting Stellar Magnitude: |
14.7 |
| Resolution (Rayleigh): |
.5 arc seconds |
| Resolution (Dawes): |
.42 arc seconds |
| Light Gathering Power (Compared to human eye): |
1593x |
| Secondary Mirror Obstruction: |
95mm (3.75") |
| Secondary Mirror Obstruction by Diameter: |
34% |
| Secondary Mirror Obstruction by Area: |
12% |
| Optical Coatings: |
StarBright XLT |
| Optical Tube Length: |
610mm(24") |
| Optical Tube Diameter: |
312.42mm (12.3") |
| Optical Tube Weight: |
12.4 KG |
| Dovetail: |
CGE Dovetail bar |
| MOUNT INFO: |
|
| Mount Type: |
Computerized Equatorial |
| Instrument load capacity: |
(13.6 kg) |
| Height adjustment range (includes mount and tripod): |
1118mm - 1626mm (44" – 64") |
| Tripod Leg Diameter: |
50.8mm (2") Stainless Steel |
| Latitude adjustment range: |
7° - 77° |
| Mount Head Weight: |
(7.71 kg) |
| Accessory Tray: |
Yes |
| Tripod Weight: |
(8.16 kg) |
| Weight of Counterweights: |
3 x 12 lbs |
| Slew Speeds: |
9 slew speeds - max speed 4°/second |
| Tracking Rates: |
Sidereal, Solar and Lunar |
| Tracking Modes: |
EQ North and EQ South |
| GPS: |
N/A |
| Dovetail Compatibility: |
Dual saddle plates (CG-5 and CGE saddle) |
| Number of Auxiliary Ports: |
3 AUX Ports (1 hand control and 2 AUX Ports for optional accessories |
| Autoguide Port: |
Yes |
| USB Port: |
Yes, input on Hand Control |
| Power Requirements: |
12V DC 3.5A (tip positive) |
| Motor Drive: |
DC servo motors |
| Alignment Procedures: |
2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick 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 Starry Night Special Edition Software and SkyPortal App |
| Total Kit Weight: |
(44.67 kg) |