plural of telescoping

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

plural of telescoper

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

plural of telescopic sight

plural of telescopic star

A device used e.g. on a rifle in aiming a projectile, through which the person aiming looks at the intended target.

plural of radio 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.

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.