Expanded Specifications Celestron NexStar 4 SE Computerised Telescope
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| Optical Design: | Maksutov-Cassegrain |
| Aperture: | 102mm (4.02") |
| Focal Length: | 1325mm (52") |
| Focal Ratio: | f/13 |
| Focal Length of Eyepiece 1: | 25mm (0.98") |
| Magnification of Eyepiece 1: | 53x |
| Finderscope: | StarPointer™ red dot finderscope |
| Star Diagonal: | Internal Flip mirror for straight thru or 90° viewing angle |
| Optical Tube: | Aluminum |
| Highest Useful Magnification: | 241x |
| Lowest Useful Magnification: | 15x |
| Limiting Stellar Magnitude: | 12.5 |
| Resolution (Rayleigh): | 1.37 arc seconds |
| Resolution (Dawes): | 1.14 arc seconds |
| Light Gathering Power (Compared to human eye): | 212x |
| Secondary Mirror Obstruction: | 35mm (0.38") |
| Secondary Mirror Obstruction by Diameter: | 34% |
| Secondary Mirror Obstruction by Area: | 12% |
| Optical Coatings: | StarBright XLT |
| Optical Tube Length: | 343mm (13.5") |
| Optical Tube Diameter: | 125mm (4.9") |
| Optical Tube Weight: | 6 lbs (2.7 kg) |
| Dovetail: | CG-5 Dovetail bar |
| Mount Type: | Computerized Altitude-Azimuth Single Fork Arm |
| Instrument load capacity: | 10 lbs (4.54 kg) |
| Height adjustment range (includes mount and tripod): | 939.8mm - 2397mm (37" - 55") |
| Tripod leg diameter: | 38.1mm (1.5") Stainless Steel |
| Mount Head Weight: | 7 lbs (3.2 kg) |
| Accessory Tray: | Yes |
| Tripod Weight: | 10 lbs (4.54 kg) |
| Slew Speeds: | 9 slew speeds - max speed 3°/second |
| Tracking Rates: | Sidereal, Solar and Lunar |
| Tracking Modes: | Alt-Az, EQ North and EQ South |
| GPS: | N/A |
| Dovetail Compatibility: | CG-5 dovetail |
| Number of Auxiliary Ports: | 1x AUX Port |
| Autoguide Port: | No |
| USB Port: | Yes, Hand Control input |
| Power Requirements: | 8-AA batteries (not included) and 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: | 38,181 accessible objects. Enhanced information on over 200 objects. |
| Software: | Celestron Starry Night Special Edition Software and SkyPortal App |
| Total Kit Weight: | 23 lbs (10.4 kg) |
| Included Items: | Optical tube Single Fork Arm Mount and Tripod Accessory Tray Star Pointer Finderscope Built-In Wedge NexStar+ Hand Control 25mm eyepiece |
| Solar Warning |
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