Changes

[[File:CFW Telescope.JPG|thumbnail|The Canada-France-Hawaii telescope atop Mauna Kea, Hawaii]]

[[File:CFW Telescope.JPG|thumbnail|The Canada-France-Hawaii telescope atop Mauna Kea, Hawaii]]

[[File:Embry-Riddle Observatory One-Meter RC.jpg|200px|thumbnail|1-meter F/8 Ritchey–Chrétien reflector inside the Embry-Riddle Observatory]]

[[File:Embry-Riddle Observatory One-Meter RC.jpg|200px|thumbnail|1-meter F/8 Ritchey–Chrétien reflector inside the Embry-Riddle Observatory]]

An '''observatory''' is a building, usually placed high away from city lights and air [[pollution]], that is used primarily for the study of the night [[sky]]. Planetarium's contain large [[telescope]]s and are usually dome shaped.

An '''observatory''' is a building, usually placed high away from city lights and air [[pollution]], that is used primarily as a housing for a large [[telescope]].  The building is usually dome shaped, and allows the telescope to be aimed in any direction, with a slit in the dome (which can rotate) to allow the telescope to access the sky.

[[Category:Astronomy]]

[[Category:Astronomy]]