plural of telescoping

plural of telescoper

Capable of being telescoped, or expanded and contracted in sections.

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.

(astronomy) a star that is fainter than 7th magnitude in apparent magnitude, and therefore in most cases is not visible to the naked eye.

(astronomy) An alt-azimuth mounted Newtonian reflector (Newtonian telescope); a type of reflecting telescope (reflector).

(astronomy) a type of refracting telescope (refractor) similar to the one used by Galileo Galilei

plural of refracting telescope

plural of reflecting telescope

A telescope which produces a magnified image by reflecting light through a series of mirrors housed in a tube, using a large curved mirror to gather the light and one or more additional mirrors to transmit the light to an eyepiece.