Celestron Nexstar SLT

Celestron Nexstar 102SLT Computerised Telescope

  • Compatible with 2″ eyepieces
  • High quality 102 mm short tube style refractor
  • 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
  • BONUS Astronomy Software download with a 10,000 object database, printable sky maps and 75 enhanced images
SKU: C/22096 Categories: ,


The popularity of our previous short tube refractor models inspired us to go a step further with the introduction of the Celestron Nexstar 102SLT. You’ll find that astronomical viewing is a delight with this large, powerful 4″ telescope. The 102SLT offers a 63% increase in image brightness over 80 mm models. This short-tube telescope with a fast f/6.5 optical system gives images that are bright and crisp.

And the Celestron Nexstar 102SLT, like the other models in the SLT Series, comes with a fully computerized hand control with a database of over 4,000 celestial objects! With its pre-assembled, adjustable steel tripod, the NexStar 102SLT can be up and ready to use in a matter of minutes. Our new SkyAlign alignment technology, and the included StarPointer Finderscope with a red LED, makes aligning a breeze.

Because of its wide 1.7 ° field of view, the NexStar102 SLT is optimal for scanning large areas of the sky and for superb terrestrial (land) viewing. A wonderful entry to mid-level astronomical scope, with the use of an optional erect image diagonal, the 102SLT can also be used as a land-based spotting telescope.

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


  • Accessory Tray: No Tool, Quick release
  • Alignment Procedures: SkyAlign, Auto 2-Star Align, 1-Star Align, 2-Star Align, Solar System Align
  • Aperture (mm): 102 mm (4.02 in)
  • Apparent Field of View: 1.7 “
  • Computer Hand Control: Fully Computerized / Flash Upgradeable
  • Database: 4,000 Object Database
  • Finderscope; StarPointer
  • Focal Length: 660 mm (26 in)
  • Focal Length of Eyepiece 1: 25 mm (0.98 in)
  • Focal Length of Eyepiece 2: 9 mm (0.35 in)
  • Focal Ratio: 6.47
  • GPS: Optional SkySync GPS Accessory (93969)
  • Highest Useful Magnification: 241 x
  • Light Gathering Power: 212 x
  • Limiting Stellar Magnitude: 12.5
  • Linear Field of View: 91 ft (28 m)
  • Lowest Useful Magnification: 15 x
  • Magnification of Eyepiece 1: 26 x
  • Magnification of Eyepiece 2: 73 x
  • Mount Type: Motorized Altazimuth
  • Optical Coatings: Multi-Coated
  • Optical Design: Refractor
  • Resolution (Dawes): 1.14 arc seconds
  • Resolution (Rayleigh): 1.37 arc seconds
  • Slew Speeds: Nine slew speeds
  • Star Diagonal: 1.25
  • Tracking Modes: Alt-Az, EQ North and EQ South
  • Tracking Rates: Sidereal, Solar and Lunar
  • Tripod: Steel
  • Warranty: 2-year Telescope Warranty