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21 relations: Amateur astronomy, Antenna boresight, Barlow lens, Cassegrain reflector, Catadioptric system, Clock drive, Dmitry Dmitrievich Maksutov, Equatorial mount, Finderscope, John F. Gregory, Maksutov telescope, Manufacturing, National Geographic, New Hope, Pennsylvania, Pennsylvania, PerkinElmer, Scientific American, Sky & Telescope, Spotting scope, Telephoto lens, Wernher von Braun.
Amateur astronomy
Amateur astronomy is a hobby whose participants enjoy observing or imaging celestial objects in the sky using the unaided eye, binoculars, or telescopes.
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Antenna boresight
In telecommunications and radar engineering, antenna boresight is the axis of maximum gain (maximum radiated power) of a directional antenna.
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Barlow lens
The Barlow lens, named after Peter Barlow, is a diverging lens which, used in series with other optics in an optical system, increases the effective focal length of an optical system as perceived by all components that are after it in the system.
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Cassegrain reflector
The Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas.
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Catadioptric system
A catadioptric optical system is one where refraction and reflection are combined in an optical system, usually via lenses (dioptrics) and curved mirrors (catoptrics).
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Clock drive
In astronomy a clock drive is a motor-controlled mechanism used to move an equatorial mounted telescope along one axis to keep the aim in exact sync with the apparent motion of the fixed stars on the celestial sphere.
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Dmitry Dmitrievich Maksutov
Dmitry Dmitrievich Maksutov (Дми́трий Дми́триевич Максу́тов) (– 12 August 1964) was a Russian / Soviet optical engineer and amateur astronomer.
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Equatorial mount
An equatorial mount is a mount for instruments that compensates for Earth's rotation by having one rotational axis parallel to the Earth's axis of rotation.
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Finderscope
A finderscope is an aiming device used in astronomy, typically a small auxiliary telescope mounted on the main astronomical telescope along the same line of sight.
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John F. Gregory
John F. Gregory (1927–November 14, 2009) was an American optical engineer and a popularizer of amateur telescope making.
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Maksutov telescope
The Maksutov (also called a "Mak") is a catadioptric telescope design that combines a spherical mirror with a weakly negative meniscus lens in a design that takes advantage of all the surfaces being nearly "spherically symmetrical".
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Manufacturing
Manufacturing is the production of merchandise for use or sale using labour and machines, tools, chemical and biological processing, or formulation.
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National Geographic
National Geographic (formerly the National Geographic Magazine and branded also as NAT GEO or) is the official magazine of the National Geographic Society.
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New Hope, Pennsylvania
New Hope is a borough in Bucks County, Pennsylvania, United States.
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Pennsylvania
Pennsylvania (Pennsylvania German: Pennsylvaani or Pennsilfaani), officially the Commonwealth of Pennsylvania, is a state located in the northeastern and Mid-Atlantic regions of the United States.
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PerkinElmer
PerkinElmer, Inc., is an American multinational corporation focused in the business areas of human and environmental health, including: environmental analysis, food and consumer product safety, medical imaging, drug discovery, diagnostics, biotechnology, industrial applications, and life science research.
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Scientific American
Scientific American (informally abbreviated SciAm) is an American popular science magazine.
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Sky & Telescope
Sky & Telescope (S&T) is a monthly American magazine covering all aspects of amateur astronomy, including the following.
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Spotting scope
A spotting scope is a small portable high-power telescope with added optics to present an erect image, optimized for the observation of terrestrial objects.
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Telephoto lens
In photography and cinematography, a telephoto lens is a specific type of a long-focus lens in which the physical length of the lens is shorter than the focal length.
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Wernher von Braun
Wernher Magnus Maximilian Freiherr von Braun (March 23, 1912 – June 16, 1977) was a German (and, later, American) aerospace engineer and space architect.
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References
[1] https://en.wikipedia.org/wiki/Questar_Corporation
