| OPTICAL TUBE INFO: | |
| Optical Design | Rowe-Ackermann Schmidt Astrograph |
| Aperture | 279mm (11″) |
| Focal Length | 620mm (24.4″) |
| Focal Ratio | f/2.2 |
| Central obstruction diameter | 114mm (4.48″) (41% of aperture diameter) |
| Light Gathering Power (Compared to human eye) | 1588x |
| Resolution (Rayleigh) | 0.49 arc seconds |
| Resolution (Dawes) | 0.41 arc seconds |
| Image Circle | 43.3mm (1.7″) Ø , 4.0° |
| Useable field | 52mm (2.04″) Ø , 4.8° only minimal performance loss at edge of FOV |
| Wavelength range | 400 – 700 nm |
| Spot size | < 4.4 μm RMS across FOV |
| Optical Coatings | StarBright XLT |
| Off-axis Illumination | 83% at 21mm (.82″) off-axis |
| Optical Window | 68mm (2.67″) Ø |
| Back focus with included camera adapter | 55mm (2.16″) |
| Back focus from top of threaded collar | 72.8mm (2.86″) |
| Optical Tube | Aluminum |
| Optical Tube Length | 838.2mm (33″) |
| Optical Tube Diameter | 330.2mm (13″) |
| Focuser | Ultra-Stable Focus System |
| Finderscope | Not included |
| Optical Tube Weight | 43 lbs (19.5 kg) |
| Other Features | Ventilation fan, dual dovetail mounting bars |
| Included items | 42mm (1.65″) T-thread camera adapter | 48mm (1.89″) camera adapter | Dust cover | Fan battery pack |
| Dovetail | CGE Dovetail Bar |
| MOUNT INFO: | |
| Mount Type | Computerized Equatorial |
| Instrument load capacity | 55 lbs (25 kg) |
| Height adjustment range (includes mount and tripod) | 1200.15mm – 1968.5mm (47.25″ – 77.5″) |
| Tripod Leg Diameter | 50.8mm (2″) Steel tripod |
| Latitude adjustment range | 3° – 65° |
| Mount Head Weight | 44 lbs (20 kg) |
| Accessory Tray | Yes |
| Tripod Weight | 19.2 lbs (8.7 kg) |
| Weight of Counterweights | 4 x 11 lbs |
| Slew Speeds | 9 slew speeds – max speed 4°/second |
| Tracking Rates | Sidereal, Solar and Lunar |
| Tracking Modes | EQ North & EQ South |
| GPS | N/A |
| Dovetail Compatibility | Dual saddle plates (CG-5 and CGE saddle) |
| Number of Auxiliary ports | 2 Aux ports (Hand Control can use either Aux port) |
| Autoguide port | Yes |
| USB Port | Yes, input for Mount and Hand Control |
| Power Requirements | 12V DC, 4 amps |
| Motor Drive | DC servo motors |
| Alignment Procedures | 2-Star Align, 1-Star Align, Solar System Align, Last Alignment, Quick Align |
| Periodic Error Correction | Yes |
| Computer 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 | CPWI Telescope Control Software, Celestron Starry Night Special Edition Software, SkyPortal App |
| Total Kit Weight | 150.2 lbs (68 kg) |
| Included Items | CGX Equatorial Head | CGX Tripod | Accessory Tray | 4 x 11 lbs counterweights | NexStar+ Hand Control | Counterweight Shaft | 8mm Allen Wrench | 12V DC Power Cable | Hand Control Holster |
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