plural of radio telescope

A telescope which produces a magnified image by refracting light through a series of lenses housed in a tube, with a light-gathering objective lens at one end and an eyepiece at the other.

(astronomy) A device for observing astronomical sources of radio waves, normally having one or more large parabolic dishes.

(astronomy) A telescope, having a wide field of view, comprising a thin aspheric lens and a large concave mirror

(astronomy) A telescope designed to make observations of the sun.

plural of dialytic telescope

A catadioptric telescope with a meniscus corrector.

plural of Maksutov telescope

An achromatic telescope in which the coloured dispersion produced by a single object lens of crown glass is corrected by a smaller concave lens, or combination of lenses, of high dispersive power, placed at a distance in the narrower part of the converging cone of rays, usually near the middle of the tube.

A kind of reflecting telescope: a modified Cassegrain telescope with light reflected sideways before reaching the primary mirror again.