Celestron Cometron FirstScope


Vendor: Celestron


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Celestron Cometron FirstScope

Celestron SKU: 21023 | Helix SKU: CT21023

Overview

  • 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

Description

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.

Specifications

 

Optical Tube Info:
Optical Design Newtonian Reflector
Aperture (mm) 76 mm (2.99 in)
Telescope Type Manual
Focal Length 300 mm (12 in)
Focal Ratio 3.95
Focal Length of Eyepiece 2 (mm) Kellner 10 mm (0 in)
Finderscope 5x24
Mount Info:
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