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