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Radio Telescope

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Radio Telescope From Wikipedia, the free encyclopedia The 64 meter radio telescope at Parkes ObservatoryA radio telescope is a form of directional radio antenna used in radio astronomy and in tracking and collecting data from satellites and space probes. In their astronomical role they differ from optical telescopes in that they operate in the radio [...]

Meade ETX Telescope

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Meade ETX Telescope From Wikipedia, the free encyclopedia A 105mm diameter Meade ETXThe ETX is a line of Maksutov-Cassegrain telescopes made by Meade Instruments Corporation. They have been produced in diameters of 90mm, 105mm, and 125mm. They are moderately priced compared to other commercialy produced telescopes with their level of performance. Other than Maksutov, another [...]

Pfund Telescope

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Pfund Telescope From Wikipedia, the free encyclopedia The Pfund telescope, originated by A. H. Pfund, provides another method for achieving a fixed telescope focal point in space regardless of where the telescope line of sight is pointed. This configuration utilizes a two-axis feed flat mirror to reflect starlight into a fixed paraboloid of revolution (paraboloidal) [...]

Types of Combined Lens-Mirror Telescopes

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Combined Lens-Mirror Systems (Catadioptrics) Maksutov telescope Schmidt camera Schmidt-Newton telescope Schmidt-Cassegrain telescope Houghton Modified Dall-Kirkham Klevtsov Argunov

Types of Reflector Telescopes

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Reflectors (Catoptrics) Newtonian Gregorian  Classical Cassegrain Dall-Kirkham Large liquid mirror telescope Pfund telescope Ritchey-Chrétien Schiefspiegler Yolo Herrig Stevick-Paul

Types of Refractor Telescopes

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Refractors (Dioptrics) Non-achromatic Achromatic Apochromatic Superachromatic

Astronomy Picture of The Day

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History of Astronomy

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