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Glossary term: Optical Telescope

Description: An optical telescope is an instrument that is used to observe and study astronomical objects in visible (optical) light by using mirrors (a reflecting telescope) and/or lenses (a refracting telescope). Telescopes were originally developed to observe distant objects on Eath but were soon turned to astronomical use. Telescopes can range in size from a few centimeters across to diameters over then meters.

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Term and definition status: This term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".