An optical telescope is a telescope that gathers and focuses light, mainly from the visible part of the electromagnetic spectrum, to create a magnified image for direct view, or to make a photograph, or to collect data through electronic image sensors. There are three primary types of optical telescope: A telescope`s light gathering power and abi....
(from the article `telescope`) Optical telescopesOptical telescopes are either refractors or reflectors that use lenses or mirrors, respectively, for their main light-collecting elements ... [2 related articles]
[n] - an astronomical telescope designed to collect and record light from cosmic sources
a telescope that uses mirrors to reflect an image to the observer
a telescope that uses mirrors to reflect an image to the observer
noun an astronomical telescope designed to collect and record light from cosmic sources
a telescope that uses mirrors to reflect an image to the observer