Celestron NEXSTAR 90SLT COMPUTERIZED TELESCOPE Maksutov-Cassegrain F14 Professional Astronomical 22087

Regular price £790.00

Tax included.

From the manufacturer


NexStar 90SLT Computerized Telescope

Model No. 22087

General Features

  • High quality 90mm Maksutov-Cassegrain
  • Fully computerized Altazimuth mount
  • StarPointer finderscope to help with alignment and accurately locating objects
  • Quick-release fork arm mount, optical tube and accessory tray for quick no tool set up
  • Sturdy stainless steel tripod and accessory tray included
  • Good for terrestrial and celestial observing
  • “TheSkyX – First Light Edition” astronomy software with a 10,000 object database, printable sky maps and 75 enhanced images

Computerized Mount Features

  • Proven NexStar computer control technology
  • Database allows telescope to locate over 4,000 celestial objects
  • SkyAlign allows you to align on any three bright celestial objects, making for a fast and easy alignment process
  • Flash upgradeable hand control software and motor control units for downloading product updates over the Internet
  • Internal battery compartment to prevent cord wrap during use
  • Auxiliary port for additional accessories such as GPS accessory
  • Includes NSOL telescope control software for basic control of your telescope via computer (with optional RS-232 cable)
  • Compatible with optional NexRemote telescope control software, for advanced control of your telescope via computer


Optical design: Maksutov-Cassegrain
Caliber: 90 mm
Focal length: 1250 mm
Focus ratio: F14
Eyepiece 1: 25 mm (50 times)
Eyepiece 2: 9 mm (139 times)
Finder mirror: red dot finder
Zenith mirror: 1.25 inches
Bracket: motor driven theodolite
Accessory disk: no tools required for quick release
Tripod: steel
Maximum effective magnification: 213 times
Minimum effective magnification: 13 times
Limit star: 12.3, etc.
Resolution (Rayleigh limit): 1.55 arc seconds
Resolution (Dow's limit): 1.29 arc seconds
Concentration: 165 times (relative to the human eye)
Field of view: 1 degree (standard eyepiece 1)
Linear field of view: 16 m / 1000 yards
Coating: Full coating
Swing speed: 9 kinds
Tracking speed: star speed, sun speed, moon speed
Tracking mode: theodolite, equatorial (Northern Hemisphere), Equatorial (Southern Hemisphere)
Calibration mode: sky calibration, automatic two-star calibration, one-star calibration, two-star calibration, solar system calibration
Computerized hand controller: fully computerized, upgradeable
Database: 4000 targets
GPS: Optional SkySync GPS accessory (93969)
Warranty: 1 year
2345789Celestron-NEXSTAR-90SLT-COMPUTERIZED-TELESCOPE-Maksutov-Cassegrain-F14-Professional-Astronomical-22087 (1)