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The NexStar - GT series of Telescopes shares a common heritage in features and function. Each NexStar telescope includes the latest state-of-the-art computerized GoTo technology, amazingly easy-to-use features and ready-to-use components. After the computer guides you through a simple set up, each Celestron Nex Star Telescope will point itself to the object you choose from its stored database of astronomical objects without referring to star charts!

To assist in the star alignment, the NexStar uses a lightweight StarPointer Finderscope. The StarPointer is the quickest and easiest way to point your telescope exactly to the desired object in the sky. It's like having a laser pointer that you can shine directly onto the night sky. No need to worry about the inverted images you see through traditional finders, just align the red dot seen through the StarPointer with the desired star in the sky. It's that easy.

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 NexStar GT's deluxe features combine with Celestron's uncompromising optical standards to give amateur astronomers one of the most sophisticated and easy to use telescopes available on the market today.

The popularity of Celestron 80GT short tube refractor inspired us to go a step further with the introduction of Celestron NexStar 102 GT Telescope. You'll find that astronomical viewing is a delight with large, powerful 4" NexStar-102GT 22092  telescope.

Celestron NexStar102-GT offers a 63% increase in image brightness over 80mm models. Celestron NexStar102GT is short-tube telescope with a fast f/5 optical system gives images that are bright and crisp. And Celestron 102 mm NexStar - GT Telescope includes computerized GoTo technology!

Because of its wide 2.6° field of view, the NexStar-102 GT Telescope is optimal for scanning large areas of the sky and for superb terrestrial (land) viewing. You can see all of the Andromeda Galaxy! Few telescopes can say that! A wonderful first-time astronomical scope, with the use of an optional erect image diagonal) the 102GT can also be used as a great, land-based spotting telescope. Every Celestron NexStar-GT Telescope includes a version of The Sky software Level 1 Planetarium software for exploring the Universe on your PC and printing out custom star charts of the sky. In addition, you receive the Nex Star Observer's List (NSOL) control software. Just connect your Celestron NexStarGT Telescope to your laptop or PC (with optional RS-232 cable) for click-and-slew ability to any object in the NexStar 's database.

Specifications for Celestron NexStar102 GT Telescopes (item #22092):

Design:  Refractor
Aperture:  102mm
Focal Length:  500mm
F/ratio of the Optical System:  5
Objective Coatings:  Multi Coated
Highest Useful Magnification:  241x
Lowest Useful Magnification:  15x
Resolution: Rayleigh Criterion
Dawes Limit:
 1.36 arc seconds
1.14 arc seconds
Light Gathering Power:  212x unaided eye
Field of View: Standard Eyepiece:  2.5°
Linear Field of View (at 1000 yds):  131 feet
Eyepiece Magnification::  20x (25mm); 50x (10mm)
Optical Tube Length:  21 inches
Input Voltage Maximum:  12 V DC Nominal 18 V DC Max.
Minimum:  8 V DC Min.
Batteries Required:  8 AA Alkaline
Power Supply Requirements:  12 VDC-750 mA (Tip positive)
?Motor: Type Resolution:  DC Servo motors with encoders, both axes .26 arc sec
Slew speeds:  Nine slew speeds: 4° /sec, 2° /sec, 1°/sec, .5 /sec, 32x, 16x, 8x, 4x, 2x
Hand Control:  Double line, 16 character Liquid Crystal Display 19 fiber optic backlit LED buttons
Fork Arm:  Cast aluminum
Software Precision:  16 bit, 20 arc sec. calculations
Ports:  RS-232 communication port on hand control
Tracking Rates:  Sidereal, Solar and Lunar
Tracking Modes:  Alt-Az, EQ North & EQ South
Alignment Procedures:  AutoAlign, 2-Star Alignment, Quick-Align
Database:  25 user defined programmable object. Enhanced information on over 100 objects
Total Object Database:  4,033 Objects
Telescope Weight:  14 lb.

Features of Celestron NexStar 102mm GT Telescope (# 22092):

  • Computerized Hand Control
  • RS-232 Communication Port on hand control
  • Multi Coated Objective Coatings
  • StarPointer Finderscope
  • 4,000+ object database
  • Motorized Altazimuth Mount
Package Contents:

  • Celestron NexStar 102GT Telescope (22092)
  • 1-1/4" 25mm (20x), 10mm (50x) Eyepieces
  • Computerized Hand Control
  • StarPointer Finderscope
  • Star Diagonal - 1-1/4"
  • 2" Focuser
  • The Sky Level I CD-ROM
  • NSOL Control Software
  • Battery pack (for 8 user-supplied AA batteries)
  • Sturdy, Adjustable Aluminum Tripod with Accessory Tray