The great optical telescopes

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• Optical telescope — Eight Inch refracting telescope (Chabot Space and Science Center) An optical telescope is a telescope which is used to gather and focus light mainly from the visible part of the electromagnetic spectrum for directly viewing a magnified image for… …   Wikipedia

• Great Observatories program — Four Great Observatories satellites NASA s series of Great Observatories satellites are four large, powerful space based telescopes. Each of the Great Observatories has had a similar size and cost at program outset, and each has made a… …   Wikipedia

• Optical aberration — v · d · e Optical aberration …   Wikipedia

• Optical motion tracking — Motion Tracking can differ from Motion Capture because in applications such as sports and missiles the object of interest is tracked optically instead of a person. The technology is basically the same, with some differences in that many of the… …   Wikipedia

• History of the telescope — The earliest known working telescopes appeared in 1608 and are credited to Hans Lippershey and Zacharias Janssen, spectacle makers in Middelburg, and Jacob Metius of Alkmaar. The design of these early refracting telescopes consisted of a convex… …   Wikipedia

• Télescopes spatiaux — Télescope spatial Le télescope spatial Hubble en orbite autour de la Terre. Un télescope spatial est un télescope placé au delà de l atmosphère. Le télescope spatial présente l avantage par rapport à son homologue terrestre de ne pas être… …   Wikipédia en Français

• List of space telescopes — This is a list of astronomical space telescopes. The list is divided up into the major frequency ranges: gamma ray, x ray, ultraviolet, visible, infrared, microwave and radio. Telescopes that work in multiple frequency bands are in all of the… …   Wikipedia

• Colonization of the Moon — Lunar outpost redirects here. For NASA s plan to construct an outpost between 2012 and 2024, see Lunar outpost (NASA). Moonbase redirects here. For other uses, see Moonbase (disambiguation). 1986 artist concept The colonization of the Moon is the …   Wikipedia

• List of largest optical refracting telescopes — Here is a list of the largest optical refracting telescopes sorted by lens diameter and focal length. The largest refractor ever constructed was the Great Paris Exhibition Telescope of 1900. The largest practical functioning refracting telescope… …   Wikipedia

• Astrophysics — is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature, and chemical composition) of celestial objects such as stars, galaxies, and the interstellar medium, as… …   Wikipedia

• Search for extraterrestrial intelligence — The search for extraterrestrial intelligence is sometimes abbreviated as SETI. For other uses, see SETI (disambiguation). Screen shot of the screensaver for SETI@home, a distributed computing project in which volunteers donate idle computer power …   Wikipedia