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Celestron Nexstar 102GT 102mm f/9.8 Refractor Telescope


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Product ID :
95535
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Product Description

The Nexstar 102GT 102mm f/9.8 Refractor Telescope from Celestron is designed for observing celestial objects within our solar system and larger deep-spaced subjects. This refractor-style scope features a 102mm anti-reflective fully multicoated objective lens and a 1000mm focal length. Using the five included eyepieces, it will produce magnifications from 40x to 250x. These eyepieces have 1.25" barrels, and will accept most eyepiece filters for enhanced viewing experiences. A 45° erect-image prism is included for more comfortable viewing of overhead objects approaching the zenith, and since it corrects the image horizontally and vertically the telescope can be used for terrestrial viewing as well.

The motorized single-arm fork mount is controlled with the NexStar computer controller. It comes with a database of over 40,000 objects and can be used in the Northern and Southern hemispheres. Five alignment modes help to reduce set-up and maximize observation time. Pick the objects for viewing, or choose Tour or Constellation Tour mode to have the NexStar show what can be seen based on the location, date, and time. There is also an Identify mode, that allows the user to manually go to an object, and the NexStar will identify it.

A 2-section stainless steel adjustable tripod provides a solid platform for the telescope mount. The telescope assembles in just a few steps, with a dovetail plate for the optical tube assembly (OTA) and a quick-release coupling screw to attach the mount to the tripod. An accessory tray easily attaches to the tripod supports, as does the plastic NexStar holder.

Optical Performance
  • Refractor-style optical system
  • 102 mm objective lens, f/9.8 focal ratio
  • l000mm focal length
  • Anti-reflective fully multicoated optics
  • 45° erect-image diagonal for comfort and terrestrial viewing
Computer Control
  • Double-line hand controller with 16-character LCD and 19 fiber optic backlit LED buttons
  • 40,000+ object database with 50 user-defined programmable objects
  • Enhanced in-depth information on 100+ objects
  • Sidereal, solar and lunar tracking rates for properly tracking near and deep space objects
  • Alt-Az, Equatorial-North and Equatorial-South tracking modes
  • Alignment procedures: SkyAlign, Auto Two-Star, Two-Star, One-Star, Solar System Align
  • Tour mode: Automatically goes to popular and interesting objects based on location, date and time
  • Constellation tour: Automatically goes to popular and interesting objects within a specific constellation
  • Identify mode: After alignment, manually go to an object and the system will identify it
Use and Handling
  • 1.25" rack-and-pinion focuser
  • Easy assembly: Dovetail mount for OTA, and quick release coupling screw to secure mount to tripod
  • Nine slew speeds: 4°/sec, 2°/sec, 1°/sec, 0.5°/sec, 32x, 16x, 8x, 4x, 2x
  • Stainless steel adjustable tripod with accessory tray and built-in bubble level
  • Anti-backlash: Compensates for play in gears to minimize backlash and steady image
  • Hibernate mode: Allows the NexStar to be completely powered down but still retain its alignment when turned back on
Included Eyepieces
  • 25 mm: 40x magnification
  • 20 mm: 50x magnification
  • 12.5 mm: 80x magnification
  • 8 mm: 125x magnification
  • 4 mm: 250x magnification

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