Celestron Cometron FirstScope 76 Telescope

  • A Portable Table-Top Newtonian Reflector Telescope.
  • 76 mm (2.99-inch) Spherical Mirror.
  • Large Focusing Knobs and Two Eyepieces.
  • Easy to Use Every Night.
  • Planetarium Software Included.


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  • Regular price $83.95
  • $59.95
  • You save: $24.00 (28%)

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Celestron Cometron FirstScope 76 Telescope

The Celestron Cometron FirstScope 76 Telescope is a 76 mm (2.99-inch) aperture Newtonian Reflector attached to an Alt-Azimuth one-arm mount and a Dobsonian-style table-top base. 

Gear up for the next comet with this special edition Celestron Cometron FirstScope. The lightweight, extremely-portable table-top Dobsonian-style base makes this telescope easy to point and navigate. Weighing in at a mere 4.3 pounds the Cometron FirstScope makes an easy travel companion and is stylish and compact enough to sit on a desk or bookcase!

It is a complete kit with a 5x24 finderscope and two Kellner (20 mm and 10 mm) eyepieces. The Celestron Cometron FirstScope 76 is ready to use right out of the box! 

Also included is your download for Starry Night Celestron Basic: Edition software.

Celestron cometron FirstScope 76 Telescope - SW 

Celestron Product Number: 21023


Aperture76 mm (3")
Camera/Eyepiece Connection1.25" Nosepiece
Dawes Limit1.53 arcseconds
Focal Length300 mm
Focal Ratiof/3.9
Free ShippingYes
Head DesignAltitude Azimuth
Highest Magnification152x
Light Gathering Power118x
Limiting Magnitude13.2
Optical DesignNewtonian
Secondary Obstruction28mm
Tube Length254mm


  • Celestron's Cometron FirstScope 76 mm (2.99-inch) Newtonian Reflector OTA (attached to its mount).
  • Celestron's One-Armed Alt-Azimuth Dobsonian Cradle Mount (Table-Top). 
  • 1.25-inch Eyepiece #1: H 20 mm, 15x magnification.
  • 1.25-inch Eyepiece #2: SR 4 mm, 75x magnification.
  • Link to: Cometron Instruction Sheet.
  • Download for Starry Night Celestron Basic: Edition software.
  • 2 Year Telescope Warranty.




Customer Reviews
4.7 Based on 3 Reviews
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United States United States
Celestron beginners telescope

I bought this for my grandson for his birthday which is not for several weeks from now. He loves science and I expect he will love exploring the sky. Item came well packed and sooner than I expected with the pandemic I pleased with the service. I am awaiting a telescope for myself and my grandson and I can share some new adventures together across the miles

United States
Great images

The telescope is simple to use. Clear images. My family loves it!

Great family scope

Bought this scope to view the moon and hopefully some comets in the near future. Overall great value and the service from OPT was exceptional.