CELESTRON 21023 COMETRON FIRSTSCOPE CELESTRON 21023 COMETRON FIRSTSCOPE CELESTRON The Celestron Cometron FirstScope 76mm f/4 Alt-Az Reflector Telescope is designed as an ideal entry-level optic for observing the Moon and planets, comet-watching, and enjoying meteor showers. This tabletop telescope features a Newtonian reflector optical design whose mirror is coated with a highly reflective combination of aluminum with SiO2 to improve resolution and contrast, while reducing comas and color fringing. The scope comes with two fully multi-coated 1.25" diameter eyepieces that yield 15x and 30x magnifications. The manual tabletop alt-azimuth mount gives you easy control of the telescope for tracking near and deep-sky objects. This telescope is easy to assemble and transport, so you can spend less time setting up and more time enjoying the night sky. Optical Performance 76mm aperture f/4 focal ratio 300mm focal length Newtonian reflector design Highly-reflective aluminum with SiO2 mirror coatings Resolution: 1.83 arc sec, Rayleigh; 1.53 arc sec Dawes Secondary Mirror Obstruction: 1.1 inches, 37% by diameter, 14% by area 1.25" rack-and-pinion focuser Accessories Eyepieces : 1.25" diameter barrel Accepts most 1.25" filters and accessories Fully multi-coated to improve color and contrast 10mm eyepiece for 30x magnification 20mm eyepiece for 15x magnification Finderscope : 5x24 configuration Wide field of view enables fast acquisition of subjects and easy star-hopping Mount Manual alt-azimuth mount Stable tabletop base Weight: 4.3 lb

CELESTRON 21023 COMETRON FIRSTSCOPE

Code: 210000004927
$59.95
In Stock

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The Celestron Cometron FirstScope 76mm f/4 Alt-Az Reflector Telescope is designed as an ideal entry-level optic for observing the Moon and planets, comet-watching, and enjoying meteor showers. This tabletop telescope features a Newtonian reflector optical design whose mirror is coated with a highly reflective combination of aluminum with SiO2 to improve resolution and contrast, while reducing comas and color fringing. The scope comes with two fully multi-coated 1.25" diameter eyepieces that yield 15x and 30x magnifications. The manual tabletop alt-azimuth mount gives you easy control of the telescope for tracking near and deep-sky objects. This telescope is easy to assemble and transport, so you can spend less time setting up and more time enjoying the night sky.

Optical Performance

  • 76mm aperture
  • f/4 focal ratio
  • 300mm focal length
  • Newtonian reflector design
  • Highly-reflective aluminum with SiO2 mirror coatings
  • Resolution: 1.83 arc sec, Rayleigh; 1.53 arc sec Dawes
  • Secondary Mirror Obstruction: 1.1 inches, 37% by diameter, 14% by area
  • 1.25" rack-and-pinion focuser

Accessories

Eyepieces
    :
  • 1.25" diameter barrel
  • Accepts most 1.25" filters and accessories
  • Fully multi-coated to improve color and contrast
  • 10mm eyepiece for 30x magnification
  • 20mm eyepiece for 15x magnification
Finderscope
    :
  • 5x24 configuration
  • Wide field of view enables fast acquisition of subjects and easy star-hopping

Mount

  • Manual alt-azimuth mount
  • Stable tabletop base
  • Weight: 4.3 lb

The Celestron Cometron FirstScope 76mm f/4 Alt-Az Reflector Telescope is designed as an ideal entry-level optic for observing the Moon and planets, comet-watching, and enjoying meteor showers. This tabletop telescope features a Newtonian reflector optical design whose mirror is coated with a highly reflective combination of aluminum with SiO2 to improve resolution and contrast, while reducing comas and color fringing. The scope comes with two fully multi-coated 1.25" diameter eyepieces that yield 15x and 30x magnifications. The manual tabletop alt-azimuth mount gives you easy control of the telescope for tracking near and deep-sky objects. This telescope is easy to assemble and transport, so you can spend less time setting up and more time enjoying the night sky.

Optical Performance

  • 76mm aperture
  • f/4 focal ratio
  • 300mm focal length
  • Newtonian reflector design
  • Highly-reflective aluminum with SiO2 mirror coatings
  • Resolution: 1.83 arc sec, Rayleigh; 1.53 arc sec Dawes
  • Secondary Mirror Obstruction: 1.1 inches, 37% by diameter, 14% by area
  • 1.25" rack-and-pinion focuser

Accessories

Eyepieces
    :
  • 1.25" diameter barrel
  • Accepts most 1.25" filters and accessories
  • Fully multi-coated to improve color and contrast
  • 10mm eyepiece for 30x magnification
  • 20mm eyepiece for 15x magnification
Finderscope
    :
  • 5x24 configuration
  • Wide field of view enables fast acquisition of subjects and easy star-hopping

Mount

  • Manual alt-azimuth mount
  • Stable tabletop base
  • Weight: 4.3 lb