Celestron Cometron FirstScope N 76/300 DOB

SKU:

CELESTRON-76300

Designed for tabletop observation, the Celestron Cometron FirstScope N 76/300 DOB combines a 76mm spherical Newtonian reflector with 300mm focal length and a manual Dobsonian rocker box.

  • 76mm aperture provides 1.53-arcsecond resolution
  • 300mm focal length uses f/3.95 optics
  • Tabletop Dobsonian mount and eyepieces included
  • 5×24 finder and astronomy software included
$71.00

In Stock

Add to wishlist
Compare
SKU: CELESTRON-76300 Category: Brand:
Shipping within 2 days
All orders are processed and dispatched within 2 days

Description

Wide-field comet and deep-sky observation are the central strengths of the Celestron Cometron FirstScope N 76/300 DOB, a compact Newtonian reflector with a 76 mm aperture, 300 mm focal length, and listed f/3.95 optical ratio. Its spherical primary mirror sits in a manual tabletop Dobsonian-style rocker box, while the 5×24 finder and 20 mm and 10 mm Kellner eyepieces provide the essential components for simple manual celestial observation.

The plastic optical tube uses an aluminum-coated spherical mirror with silicon dioxide protective overcoating and a 1.25-inch rack-and-pinion focuser, while the tabletop configuration avoids the need for a separate tripod or equatorial mount. The fast optical format supports broad views of comets, star clusters, galaxies, nebulae, and the Moon, and the lightweight design is suited to easy movement between suitable observing locations.

Key Features of Celestron Cometron FirstScope N 76/300 DOB

This compact tabletop reflector combines a 76 mm spherical Newtonian mirror with a 300 mm focal length, fast f/3.95 optical ratio, manual Dobsonian-style rocker box, plastic optical tube, 5×24 finder, two Kellner eyepieces, and a 1.25-inch focuser for straightforward wide-field observation.

  • 76 mm Newtonian reflector with spherical primary mirror
  • 300 mm focal length with listed f/3.95 optical ratio
  • Manual tabletop Dobsonian rocker box
  • Aluminum coating with SiO2 protective overcoating
  • 1.25-inch rack-and-pinion focuser
  • 20 mm and 10 mm Kellner eyepieces
  • 5×24 optical finder scope
  • Lightweight plastic optical tube

Portable Wide-Field Observation

The supplied application focuses on manual tabletop observation of comets, star clusters, galaxies, nebulae, lunar features, and other broad-field celestial targets, with the fast 300 mm optical format supporting wide framing while the Dobsonian-style rocker box allows direct movement without a separate tripod or complex alignment routine.

Why Choose Celestron Cometron FirstScope N 76/300 DOB

This model is a suitable choice when a buyer wants a compact tabletop telescope with a fast wide-field optical format, simple rocker-box control, lightweight construction, two Kellner eyepieces, and a 5×24 finder for introductory observation of comets, star clusters, galaxies, nebulae, and the Moon.

  • Fast f/3.95 format for the listed wide-field applications
  • Tabletop Dobsonian design without a separate tripod
  • Two eyepieces and optical finder included for immediate setup

Celestron 2-Year Limited Warranty

The supplied product information lists a 2-year limited warranty for this telescope, and buyers should confirm the current US warranty terms, optical tube coverage, rocker-box coverage, included accessory coverage, registration requirements, and authorized service process before purchase because special-edition Cometron availability and package contents may vary by sales channel.

Celestron Cometron FirstScope N 76/300 DOB Specs

BrandCelestron
Full Model CodeCelestron Cometron FirstScope (76mm)
Country of OriginUnited States / China
Optical DesignNewtonian Reflector (Spherical Primary Mirror)
Aperture76 mm (2.99 inches)
Focal Length300 mm
Focal Ratiof/3.95
Optical CoatingsAluminum Coating with Silicon Dioxide (SiO2) Protective Overcoating
Secondary Mirror Obstruction28 mm
Secondary Mirror Obstruction by Diameter37%
Secondary Mirror Obstruction by Area14%
Resolving Power1.53 Arcseconds (Dawes), 1.83 Arcseconds (Rayleigh)
Limiting Visual Magnitude11.9
Highest Useful Magnification180x
Lowest Useful Magnification11x
Optical Tube MaterialPlastic
Focuser Style & Mechanism1.25-inch Standard Rack and Pinion Focuser
Mirror Lock MechanismNo
Optical Tube Dimensions95.25 mm x 266 mm
Optical Tube Weight0.64 kg (1.4 lbs) - Tube Only
Mount Attachment TypeManual Tabletop Dobsonian Rocker Box Configuration
Finder Scope Specification5x24 Optical Finder Scope
Included Accessories20mm Kellner Eyepiece (15x), 10mm Kellner Eyepiece (30x), Integrated Tabletop Dobsonian Mount, Starry Night Basic Edition Software
Standard Warranty2-Year Limited Warranty
ApplicationPortable manual tabletop observation, utilizing a fast f/3.95 wide visual layout to isolate moving comets and sweeping stellar fields without complex setup alignment.

Reviews

There are no reviews yet.

Be the first to review “Celestron Cometron FirstScope N 76/300 DOB”

Your email address will not be published. Required fields are marked *

You may also like…

Shopping Cart

No products in the cart.

Free Shipping on All Orders Over $1,000

Log in

You dont have an account yet? Register Now

Type the product you want to search for and press enter.