Celestron FirstScope Cometron 76mm Dobsonian Astronomy Telescope #21023 (UK) NEW

Celestron FirstScope Cometron 76mm Dobsonian Astronomy Telescope #21023 (UK) NEW Description

Celestron FirstScope Cometron 76mm Dobsonian Astronomy Telescope #21023
Brand New, boxed with full Guarantee

• 76mm Aperture Newtonian Reflector
• 300mm Focal Length, f/4 Focal Ratio
• Aluminum / SiO2 Mirror Coatings
• 1.25" Rack-and-Pinion Focuser
• 20mm and 10mm Eyepieces
• 5x24 Finderscope
• Manual Tabletop Alt-Az Mount

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

What's Included?

• Celestron Cometron FirstScope 76mm f/4 Alt-Az Reflector Telescope
• 20mm Eyepiece
• 4mm Eyepiece
• 5x24 Finderscope
• Limited 2-Year Manufacturer Warranty

Specification

Optical Design

Reflector

Aperture

76 mm

Focal Length

300mm

Focal Ratio

f/4

Eyepiece Barrel Diameter

1.25"

Diagonal

None

Finderscope

5x24

Tripod

None

Mount Type

Manual alt-azimuth

Power Source

None

Optical Tube Length

10.0" / 25.4 cm

Weight

4.3 lb / 2.0 kg

Package Weight

5.15 lb

Box Dimensions (LxWxH)

15.2 x 9.5 x 9.5"