stellar interferometry

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• Stellar rotation — is the angular motion of a star about its axis. The rate of rotation can be measured from the spectrum of the star, or by timing the movements of active features on the surface.The rotation of a star produces an equatorial bulge due to… …   Wikipedia

• Stellar triangulation — is a method of geodesy which uses cosmic instead of terrestrial targets. It was first done by the Finnish geodesist Väisälä in 1959, who made astrometric photographs of the sky at two stations together with a balloon probe between them.Even this… …   Wikipedia

• Astronomical optical interferometry — One of the first astronomical interferometers was built on the Mount Wilson Observatory s reflector telescope in 1920 in order to measure the diameters of stars. The red giant star Betelgeuse was among the first to have its diameter determined in …   Wikipedia

• Space Interferometry Mission — Infobox Space telescope name = Space Interferometry Mission (SIM) caption = Artist s concept of the SIM telescope in space organization = NASA / JPL major contractors = Northrop Grumman alt names = SIM PlanetQuest nssdc id = location = orbit type …   Wikipedia

• History of astronomical interferometry — See also: astronomical interferometerWilliam Herschel knew as early as 1779 (Herschel 1805) that stars appeared much larger in telescopes than they really were but he did not know why. When Thomas Young demonstrated interference and the wave… …   Wikipedia

• Very Long Baseline Interferometry — (VLBI) is a type of astronomical interferometry used in radio astronomy. It allows observations of an object that are made simultaneously by many telescopes to be combined, emulating a telescope with a size equal to the maximum separation between …   Wikipedia

• Space Interferometry Mission — Die Space Interferometry Mission, auch bekannt als SIM PlanetQuest, ist ein geplantes Weltraumteleskop. Eines der Hauptziele ist die Suche nach erdgroßen Planeten außerhalb unseres Sonnensystems, die um andere Sterne kreisen (Exoplaneten) …   Deutsch Wikipedia

• Michelson stellar interferometer — Scheme of the Michelson stellar interferometer …   Wikipedia

• speckle interferometry — noun : interferometry in which a composite image of an object is made by recording individual speckle images over a period of time ; specifically : such a technique used in astronomy to generate a clear image of a celestial body blurred by… …   Useful english dictionary

• Mark III Stellar Interferometer — The Mark III Stellar Interferometer was a long baseline astronomical optical interferometer, located at the Mount Wilson Observatory, California, United States.[1] It had a maximum baseline of 32 meters and operated in wavelengths between 450 and …   Wikipedia

• Interferometre optique a longue base — Interféromètre optique à longue base Schéma de principe d un interféromètre optique à longue base comprenant deux télescopes.[1] Un interféromètre optique à longue base est un type d …   Wikipédia en Français