Celestron’s Cometron 114mm f/4 Reflector Telescope makes an ideal entry-level instrument that is well-suited for making detailed observations of the Moon and planets, and bright deep-sky objects like star clusters, binary systems, and nebulae. The large aperture primary mirror and relatively short focal length produce a fast focal ratio that increases sharpness, widens the overall field of view, and allows for shorter exposure times for astrophotography.
Supporting the optical tube is a basic manual alt-az mount outfitted with a locking control handle to make finding and tracking objects easier with reduced vibrations, and an adjustable-height stainless steel tripod. This observation kit comes complete with two eyepieces that provide 22.5x and 45x magnifications, and an unmagnified red-dot finder to make locating objects easier and performing star-hopping navigation faster.
Optical Performance
114mm aperture
f/4 focal ratio
450mm focal length
Newtonian reflector optical path
Highly reflective aluminum/SiO2 mirror coatings
Resolution: 1.22 arc-sec. Rayleigh; 1.02 arc-sec, Dawes
Secondary Mirror Obstruction: 1.35″ (3.4cm); 30% by diameter; 9.05% by area
Aluminum optical tube
Mount and Tripod
Mount:Manual alt-azimuth mount
Pan handle for increased control and reduced vibration
Tripod: Stainless steel legs
Adjustable from 29-46″
Accessory tray holds eyepieces and gear while adding stability
Optical Performance
114mm aperture
f/4 focal ratio
450mm focal length
Newtonian reflector optical path
Highly reflective aluminum/SiO2 mirror coatings
Resolution: 1.22 arc-sec. Rayleigh; 1.02 arc-sec, Dawes
Secondary Mirror Obstruction: 1.35″ (3.4cm); 30% by diameter; 9.05% by area
Aluminum optical tube
Mount and Tripod
Mount:
Manual alt-azimuth mount
Pan handle for increased control and reduced vibration
Tripod:
Stainless steel legs
Adjustable from 29-46″
Accessory tray holds eyepieces and gear while adding stability
Included Accessories
Eyepieces
1.25″ diameter barrel
Fully multicoated Kellner eyepieces
10mm eyepiece for 45x magnification
20mm eyepiece for 22.5x magnification
Finder
Unmagnified view helps finding objects and makes star-hopping navigation faster
Adjustable intensity red center dot



