As with any field of scientific study, astronomy has a long list of important terminology. So we've put together this glossary where you can check you fully understand the meaning of the common terms, as well as some of the more unusual words.

A -- B -- C -- D -- E -- F -- G -- H -- I -- J -- K -- L -- M -- N -- O -- P -- Q -- R -- S -- T -- U -- V -- W -- X -- Y -- Z

Words beginning with 'F' :

Field of view : the patch of sky seen through a telescope or binoculars. It is usually expressed as an angular area.

Finderscope : a small telescope auxiliary to a mounted telescope, on the same line of sight of the larger telescope and used for aiming.

Focal length : is the distance from a lens or mirror to the image that it forms (focal point).

Resources :

To support the quizzes in each section, we've put together some extra resources to provide further information: