An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

The act or process of directing a telescope. → point.
The direction in the sky to which the telescope is pointed. Pointing also describes how accurately a telescope can be pointed toward a particular direction in the sky.

Verbal noun of → point.

A mathematical model that reproduces the diurnal rotation of the Earth and is used to direct a telescope toward a precise position on the sky.

→ pointing; → model.

The accuracy with which a telescope can be pointed to a particular coordinate in the sky.

→ telescope; → pointing; accuracy.