A compact high-power monocular telescope optimized for detailed observation of distant objects such as wildlife or the strike of a bullet on a target.
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.
An astronomical telescope which is physically located on the surface of the Earth, as distinct from a telescope located in outer space.