Description
- 11” f/2.2 Rowe-Ackermann Schmidt Astrograph (RASA) V2 uses rare-earth glass for images free of false color, coma, and field curvature
- Heavy duty CGX computerized equatorial mount with 55-lb payload capacity
Specifications
| 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 and 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, and 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 |
| Additional Information | |
| Solar Warning |
|
| California Prop 65 |
WARNING: Cancer and Reproductive Harm – www.P65Warnings.ca.gov
|
