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

(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

plural of Nasmyth telescope

plural of dialytic 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.

plural of solar telescope

plural of refracting telescope

plural of reflecting telescope

A telescope which, unlike most telescopes used for astronomical purposes, contains an arrangement of lenses presenting an erect (non-inverted) image to the observer, suitable for observation of objects on the Earth's surface.