Brand: Celestron

Celestron Cometron FirstScope Telescope (21023)

050234210232

Brand: Celestron

Celestron Cometron FirstScope Telescope (21023)

050234210232

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 the moon or a dazzling comet.
  • High quality Dobsonian style stand with a 76 mm reflector optical tube make FirstScope an ideal entry level astronomical telescope.
  • Portable and lighweight table-top design makes it easy to store, transport and setup your FirstScope Telescope
  • FirstScope is very easy to observe with, the user simply navigates the night sky by moving the tube in the direction of their desired object.
  • Stylish and decorative design makes FirstScope a wonderful keepsake for anyone interested in astronomy.
$99.95 CAD

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$99.95 CAD

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Product 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 the moon or a dazzling comet. This tabletop Dobsonian-style telescope includes a spherical mirror with a generous 76 mm 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 lbs, 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.

The FirstScope is a wonderful keepsake for anyone interested in astronomy. This quality Dobsonian style telescope features a 76 mm aperture reflector optical tube. FirstScope is an ideal entry level astronomical telescope. It is very easy to observe with, the user simply navigates the night sky by moving the tube in the direction of their desired object, making the viewing experience a snap! The compact design makes it easy enough to take with you on your next outdoor adventure. FirstScope is also stylish enough to be a decorative fixture on your bookshelf or desk.

What can I see with a Celestron Cometron FirstScope Telescope (21023)?

Here are some simulated views of common objects. Results with your telescope will vary with viewing conditions, obrits, equipment and more.

Jupiter with

20mm Eyepiece - 15x Magnification

(Included with This Telescope)

Jupiter with

4mm Eyepiece - 75x Magnification

(Included with This Telescope)

Jupiter with

5mm Eyepiece - 60x Magnification

Sold Separately

Moon with 20mm Eyepiece

15x Magnification

(Included with This Telescope)

Moon with 4mm Eyepiece

75x Magnification

(Included with This Telescope)

Moon with 5mm Eyepiece

60x Magnification

Sold Separately

Andromeda with 36mm Eyepiece

8x Magnification

Sold Separately

Andromeda with 20mm Eyepiece

15x Magnification

(Included with This Telescope)

Andromeda with 4mm Eyepiece

75x Magnification

(Included with This Telescope)

What's in the Box

  • Optical tube
  • Dobsonian Mount
  • 10mm and 20mm Eyepieces
  • Finderscope

Specifications

OPTICAL TUBE INFO:
Optical Design: Newtonian Reflector
Aperture: 76mm (2.99")
Focal Length: 300mm (12")
Focal Ratio: f/3.95
Focal Length of Eyepiece 1: 20mm (0.79")
Magnification of Eyepiece 1: 15x
Focal Length of Eyepiece 2: 10mm (0.4")
Magnification of Eyepiece 2: 30x
Barlow Lens: Not Included
Finderscope: 5x24
Star Diagonal: Not Included
Optical Tube: Plastic
Highest Useful Magnification: 180x
Lowest Useful Magnification: 11x
Limiting Stellar Magnitude: 11.9
Resolution (Rayleigh): 1.83 arc seconds
Resolution (Dawes): 1.53 arc seconds
Light Gathering Power (Compared to human eye): 118x
Secondary Mirror Obstruction: 28mm (1.1")
Secondary Mirror Obstruction by Diameter: 37%
Secondary Mirror Obstruction by Area: 14%
Optical Coatings: Aluminum with SiO2
Optical Tube Length: 266mm (10.5")
Optical Tube Diameter: 95.25mm (3.75")
Optical Tube Weight: 1.4 lbs (0.64 kg)
Dovetail: N/A
MOUNT INFO:
Mount Type: Manual Tabletop Dobsonian
Height adjustment range (includes mount and tripod): N/A
Tripod Leg Diameter: N/A
Slew Speeds: Manual
Tripod Weight: N/A
Dovetail Compatibility: N/A
Software: Celestron Starry Night Basic Edition Software, and SkyPortal App
Total Kit Weight: 4.3 lbs (1.95 kg)

Customer Reviews

Based on 2 reviews
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E
E.E.

Celestron Cometron FirstScope Telescope (21023)

S
S.G.

I cannot honestly say, as I purchased it for my grandson for Christmas. I'll let you know what he thinks!

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