plural of optical telescope

An instrument, used both for recreational and scientific purposes, which provides a magnified view of distant objects by collecting and focusing light by means of mirrors and/or optical lenses.

plural of Nasmyth telescope

plural of solar telescope

plural of Dobsonian telescope

plural of Galilean telescope

plural of Schmidt telescope

plural of telescope house

plural of terrestrial telescope

(astronomy) A telescope that can point vertically at the zenith