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NexStar 90SLT (OTA)
- High quality 90 mm Maksutov-Cassegrain
- Good for terrestrial and celestial observing
Specifications
| OPTICAL TUBE INFO: | |
| Optical Design: | Maksutov-Cassegrain |
| Aperture: | 90mm (3.54") |
| Focal Length: | 1250mm (49") |
| Focal Ratio: | f/14 |
| Focal Length of Eyepiece 1: | 25mm (0.98") |
| Magnification of Eyepiece 1: | 50x |
| Focal Length of Eyepiece 2: | 9mm (0.35") |
| Magnification of Eyepiece 2: | 139x |
| Finderscope: | StarPointer™ red dot finderscope |
| Star Diagonal: | 1.25 |
| Highest Useful Magnification: | 213x |
| Lowest Useful Magnification: | 13x |
| Limiting Stellar Magnitude: | 12.3 |
| Resolution (Rayleigh): | 1.55 arc seconds |
| Resolution (Dawes): | 1.29 arc seconds |
| Light Gathering Power (Compared to human eye): | 165x |
| Apparent Field of View: | 1° |
| Linear Field of View (@1000 yds): | 53 ft (16 m) |
| Optical Coatings: | Fully Coated |
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