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A barn door tracker, also known as a Haig or Scotch mount, is a device used to cancel out the diurnal motion of the Earth for the observation or photography of astronomical objects. It is a simple alternative to attaching a camera to a motorized equatorial mount. [1]
Beginner telescopes: Altazimuth mounts are cheap and simple to use. Dobsonian telescopes: John Dobson popularized a simplified altazimuth mount design for Newtonian reflectors because of its ease of construction; Dobson's innovation was to use non-machined parts for the mount that could be found in any hardware store such as plywood, formica ...
[4] [5] OMI has an optics shop where it does work on telescopes. [5] OMI produced the 60 cm, f/10 telescope for TUBITAK National Observatory in Turkey. OMI built the telescope mount for the SuperWASP telescope. [6] The Robotic telescope Rigel Telescope was finished in 2002, a Talon program controlled 0.37-meter (14.5 in) F/14 telescope. [7]
They began producing Dobsonian telescopes in 2000, followed by Maksutov–Cassegrains in 2001, and Apochromat ED-APO refracting telescopes in 2004. Sky-Watcher sells telescopes from 2.4" (62mm) up to 16" (406mm) aperture with manual, motor-driven, or GoTo mounts. [ 3 ]
A Dobsonian telescope on display at Stellafane in the early 1980s. A Dobsonian telescope is an altazimuth-mounted Newtonian telescope design popularized by John Dobson in 1965 and credited with vastly increasing the size of telescopes available to amateur astronomers. Dobson's telescopes featured a simplified mechanical design that was easy to ...
William Herschel's 49-inch (1,200 mm) 40-foot telescope on an altazimuth mount. Altazimuth, altitude-azimuth, or alt-az mounts allow telescopes to be moved in altitude (up and down), or azimuth (side to side), as separate motions. This mechanically simple mount was used in early telescope designs and until the second half of the 20th century ...