astronomical instruments

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• astronomical map — Introduction       any cartographic representation of the stars, galaxies, or surfaces of the planets and the Moon. Modern maps of this kind are based on a coordinate system analagous to geographic latitude and longitude. In most cases, modern… …   Universalium

• astronomical observatory —       any structure containing telescopes and auxiliary instruments with which to observe celestial objects. Observatories can be classified on the basis of the part of the electromagnetic spectrum in which they are designed to observe. The… …   Universalium

• 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

• Astronomical interferometer — An astronomical interferometer is an array of telescopes or mirror segments acting together to probe structures with higher resolution. Astronomical interferometers are widely used for optical astronomy, infrared astronomy, submillimetre… …   Wikipedia

• Astronomical naming conventions — In ancient times, only the Sun and Moon, a few hundred stars and the most easily visible planets had names. Over the last few hundred years, the number of identified astronomical objects has risen from hundreds to over a billion, and more are… …   Wikipedia

• La Plata Astronomical Observatory — The La Plata Astronomical Observatory (in Spanish, Observatorio Astronómico de La Plata ) is an observatory located in the city of La Plata, capital of the province of Buenos Aires, Argentina. Its IAU code is 839.La Plata was a planned city,… …   Wikipedia

• Sextant (astronomical) — This article is about the Sextant as used for astrometry. For the navigator s sextant, see Sextant . Sextants for astronomical observations were used primarily for measuring the positions of stars. They are little used today, having been replaced …   Wikipedia

• Orbiting Astronomical Observatory — Artist s conception of OAO 1 in orbit OAO 3 in the clean room The …   Wikipedia

• South African Astronomical Observatory — The Southern African Large Telescope Organ …   Wikipedia

• Pisgah Astronomical Research Institute — (PARI) (pronounced Perry) is an astronomical observatory located in the United States in Balsam Grove, North Carolina. It is operated as a not for profit foundation. PARI is in the Pisgah National Forest of Western North Carolina at an elevation… …   Wikipedia

• National Astronomical Observatory of Japan — The National Astronomical Observatory of Japan (国立天文台, kokuritsu tenmondai?) (NAOJ) is an astronomical research organisation comprising several facilities in Japan, as well as an observatory in Hawaii. It was established in 1988 as an… …   Wikipedia