Synonymer & Information om | Engelska ordet DOBSONIAN

Exempel på hur man kan använda DOBSONIAN i en mening

• Some telescopes are classified by the task they perform; for example Solar telescopes are all designs that look at the Sun, Dobsonian telescopes are designed to be low cost and portable, Aerial telescopes overcame the optical shortcomings of 17th-century objective lenses, etc.
• John Lowry Dobson (14 September 1915 – 15 January 2014) was an American amateur astronomer and is best known for the Dobsonian telescope, a portable, low-cost Newtonian reflector telescope.
• 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.
• This has led to increased popularity of GoTo telescopes that can find DSOs automatically, and large reflecting telescopes, such as Dobsonian style telescopes, with wide fields of view well suited to such observing.
• 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, and plastic plumbing parts combined with modern materials like nylon or teflon.
• The site possesses a 24 in (61 cm) Cassegrain telescope on an English-style telescope mount in a two-story dome in addition to a 12 in (31 cm) Orion SkyQuest Dobsonian, an inoperative 6 in (15 cm) Newtonian reflector on a German equatorial mount, and a 6 in refractor used as a guide telescope.
• They began producing Dobsonian telescopes in 2000, followed by Maksutov–Cassegrains in 2001, and Apochromat ED-APO refracting telescopes in 2004.
• This type of mount has been a popular retrofit for altazimuth mounted telescopes, such as the common Dobsonian telescope type, adding equatorial tracking for high magnification work and astrophotography.

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