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Celestron Cometron FirstScope Telescope

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Status : In stock

SKU : 43044

Quick Overview

A compact, lightweight telescope that’s perfect for beginners looking to experience the magic of a dazzling comet, planet, or nebula.

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    Celestron Cometron FirstScope Telescope
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Be ready for the next big comet with Celestron’s special-edition Cometron FirstScope, a compact, lightweight telescope that’s perfect for beginners looking to experience the magic of a dazzling comet, planet, or nebula. This tabletop Dobsonian-style telescope includes a spherical mirror with a generous 76mm of aperture. The Cometron FirstScope provides bright, sharp views of comets and other celestial objects, and renders the Moon’s mountains and craters in crisp detail. And thanks to its wide field of view, you’ll be able to observe the brightest part of the comet and its tail or favorite deep-sky objects like the Orion Nebula.

The Cometron FirstScope offers several upgrades from the original Celestron FirstScope, including 2 Kellner eyepieces and a 5x24 finderscope. Weighing just 4.3 pounds, the Cometron FirstScope is a tabletop telescope that you can take on all your outdoor adventures. It’s also stylish enough to be a decorative fixture on your bookshelf or desk.

  • Fast focal ratio offers a wide field of view, perfect for observing comets, star clusters, galaxies, and more
  • Lightweight and portable, a great grab-and-go telescope
  • Simple design makes it easy for beginners to use
  • No-tool setup means you are up and observing in no time
  • Includes a finderscope and 2 Kellner eyepieces


  • Optical Design: Newtonian Reflector
  • Aperture: 76 mm (2.99 in)
  • Telescope Type: Manual
  • Focal Length: 300 mm (12 in)
  • Focal Ratio: 3.95
  • Focal Length of Eyepiece:
  • Finderscope: 5x24
  • Tripod: None
  • Highest Useful Magnification: 180 x
  • Lowest Useful Magnification: 11 x
  • Limiting Stellar Magnitude: 11.9
  • Resolution (Rayleigh): 1.83 arc seconds
  • Resolution (Dawes): 1.53 arc seconds
  • Light Gathering Power (Compared to human eye): 118 x
  • Secondary Mirror Obstruction: 1.1 in (28 mm)
  • Secondary Mirror Obstruction by Diameter: 37%
  • Secondary Mirror Obstruction by Area: 14%
  • Optical Coatings: Aluminum with SiO2
  • Optical Tube Length: 10 in (254 mm)
  • Total Telescope Kit Weight: 4.3 lbs (1.95 kg)
  • Warranty: 2-year Telescope Warranty

Additional Information

Model 21023
Brand Celestron
UPC 050234210232
Sensor Size No

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