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There are three main types of astronomical telescopes - and these are divided into subgroups. They all have their different advantages and disadvantages and they are used in different areas of astronomy. Astronomy, which etymologically means law of the stars, (from Greek: αστρονομία = άστρον + νόμος) is a science involving the observation and explanation of events occurring outside Earth and its atmosphere. ...
50 cm refracting telescope at Nice Observatory. ...
Refractors (Dioptrics) The 50 cm refractor at Nice Observatory. ...
Categories: Wikipedia cleanup | Telescopes | Astronomy stubs ...
Reflectors (Catoptrics) The Non-achromatic term for a telescope objective can have two different meanings: 1. ...
Apochromatic is a description of a photographic or other lens having a high degree of color correction. ...
The Superachromatic lens was first conceived and developed by Max Herzberger as the ultimately well-corrected lens. ...
Ritchey 24 reflecting telescope A reflecting telescope (reflector) is an optical telescope which uses mirrors, rather than lenses, to reflect light. ...
This article belongs in one or more categories. ...
Combined Lens-Mirror Systems (Catadioptrics) Newtonian Telescope The Newtonian telescope is a type of reflecting telescope invented by the British scientist Sir Isaac Newton (1643-1727), using a parabolic primary mirror and a flat diagonal secondary mirror. ...
The Gregorian telescope is a type of reflecting telescope designed by Scottish mathematician and astronomer, James Gregory in the 17th century. ...
Light path in a Cassegrain reflector Laurent Cassegrain was a catholic priest born in the region of Chartres around 1629 and died at Chaudon (Eure-et-Loir) on August 31, 1693. ...
The Dall-Kirkham telescope, invented by Horace Dall in 1928, uses an elliptiacal primary mirror and a spherical secondary. ...
A Large liquid mirror telescope or (Large LMT) is a technology being pursued by NASA and the University of British Columbia (UBC). ...
The Pfund telescope, developed by A. H. Pfund, provides another method for achieving a fixed telescope focal point in space. ...
The Ritchey-Chrétien telescope or RCT is a specialized Cassegrain telescope with a hyperbolic primary and secondary mirror. ...
A catadioptric sensor is a visual sensor that contains mirrors (catoptrics) and lenses (dioptrics). ...
A catadioptric sensor is a visual sensor that contains mirrors (catoptrics) and lenses (dioptrics). ...
These types can be mounted on different types of mounts. Invented by the Russian optician Dmitri Maksutov (1896-1964), the Maksutov reflecting telescope is a type of catadioptric telescope that uses a spherical primary mirror in conjunction with a meniscus-shaped corrector plate at the entrance pupil in order to correct spherical aberration. ...
Ritchey 24 reflecting telescope A reflecting telescope (reflector) is an optical telescope which uses mirrors to reflect light, rather than lenses to pass light. ...
The Modified Dall-Kirkham telescope utilizes an elliptical primary and spherical secondary mirror as in the conventional Dall-Kirkham configuration, but also includes two lens elements ahead of the focal point to improve off-axis image quality. ...
The Argunov Cassegrain was first introduced in 1972 by P.P. Argunov. ...
Altazimuth (ALT-AZ) Mounts
Equatorial mounts An Altazimuth or alt-azimuth mount is a simple mount used for moving a telescope or camera along two perpendicular axes of motion. ...
In astronomy the Dobsonian is a type of telescope mounting that became popular in the 1980s for its extreme simplicity, low price, and rugged construction. ...
Other mounts An Equatorial Mount for a telescope. ...
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