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The Celestron NexStar 90SLT Computerized Telescope is designed to be an affordable entry level to mid-level computerized GoTo telescope, and loaded with valuable design features. With preassembled, adjustable stainless steel tripods, and quick release fork arms and tubes, Celestron NexStar SLT Telescopes can be set up in a matter of minutes - with no tools required! You can see details of the lunar surface, Venus and its phases, polar caps on Mars, Jupiter and its four moons, Saturn with its rings plainly visible and much more! The Celestron NexStar SLT can also be used as a land-based spotting telescope.
The NexStar 90 SLT Computerized Telescope by Celestron features an intelligent design. Powered by 8 AA (user supplied) batteries or an optional AC adapter (#18778) these Celestron Telescopes love to travel. The internal battery compartment provides power to the high precision servo motors for rigid low-vibration performance while eliminating cord wrap issues associated with external battery packs. With the NexStar 's ergonomically designed hand control, the user is free to remove the hand control from its holder for remote use or leave it cradled for hands-free operation. With a touch of a button you can select the object catalog, change the slew speed, view fascinating information about an object, or simply know if a desired object is visible in the sky.
The Celestron NexStar 90-SLT Computerized Telescope has the revolutionary SkyAlign makes for a fast and easy alignment process. Simply input the date, time and location into the hand control then slew the telescope to any three bright celestial objects in the sky. You do not need to know the names of the stars - you can even pick the Moon or bright planets!
Optical Design: | Maksutov-Cassegrain |
Weight: | 12 lb (5.44 kg) |
Aperture: | 90 mm (3.54 in) |
Focal Length: | 1250 mm (49.21 in) |
Focal Ratio: | 13.89 |
Finderscope: | StarPointer |
Mount: | Motorized Altazimuth |
Eyepiece 1: | 25 mm (0.98 in) |
Magnification 1: | 50 x |
Eyepiece 2: | 9 mm (0.35 in) |
Magnification 2: | 139 x |
Star Diagonal: | 1.25 |
Accessory Tray: | No Tool, Quick release |
Tripod: | Steel |
CD ROM: | "The Sky" Level 1 and NexStar Observers List (v2.6.4c) |
Highest Useful Magnification: | 213 x |
Limiting Stellar Magnitude: | 12.3 |
Resolution (Rayleigh): | 1.55 arcsec |
Resolution (Dawes): | 1.29 arcsec |
Light Gathering Power: | 165 x |
Angular Field of View: | 1 ° |
Linear Field of View (@1000 yds): | 53 ft (16.15 m) |
Optical Coatings: | Fully-Coated |
Computer Hand Control: | Fully Computerized / Flash Upgradeable |
Slew Speeds: | Nine slew speeds |
Tracking Rates: | Sidereal, Solar and Lunar |
Tracking Modes: | Alt-Az, EQ North and EQ South |
Alignment Procedures: | SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align |
Database: | 4,000 Object Database |
GPS: | Optional CN-16 GPS Accessory |
NexStar 90SLT - Computerized Mount Features: