astronomical observation

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• Observation post — For astronomical observation posts, see Observatory. An observation post for airfield defense coordination. An observation post, temporary or fixed, is a position from which soldiers can watch enemy movements, to warn of approaching soldiers… …   Wikipedia

• Astronomical survey — Astronomical surveys generally involve imaging or mapping of regions of the sky using Telescopes. In the past,surveys have been usually restricted to one band of wavelengths of electromagnetic radiation (e.g. light or radio) or to measurements of …   Wikipedia

• Astronomical spectroscopy — is the technique of spectroscopy used in astronomy. The object of study is the spectrum of electromagnetic radiation, including visible light, which radiates from stars and other celestial objects. Spectroscopy can be used to derive many… …   Wikipedia

• Astronomical Society Of The Pacific — L Astronomical Society of the Pacific (ASP) est fondé à San Francisco en 1889. Elle a un statut d association sans but lucratif. C est la plus importante société savante consacré à l astronomie dans le monde. Elle compte des membres de plus de 70 …   Wikipédia en Français

• Astronomical society of the pacific — L Astronomical Society of the Pacific (ASP) est fondé à San Francisco en 1889. Elle a un statut d association sans but lucratif. C est la plus importante société savante consacré à l astronomie dans le monde. Elle compte des membres de plus de 70 …   Wikipédia en Français

• Astronomical seeing — Schematic diagram illustrating how optical wavefronts from a distant star may be perturbed by a layer of turbulent mixing in the atmosphere. The vertical scale of the wavefronts plotted is highly exaggerated. Astronomical seeing refers to the… …   Wikipedia

• Astronomical unit — This article is about unit of length. For the full system of units, see Astronomical system of units. 1 astronomical unit = SI units 149.60×10^6 km 149.60×10^9 m Astronomical units 4.8481 …   Wikipedia

• 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 society — There are numerous groups devoted to promoting astronomy research and education. See, for example: * [http://www.aaadelhi.org/ Amateur Astronomers Association Delhi] * [http://www.princetonastronomy.org Amateur Astronomers Association of… …   Wikipedia

• Astronomical object — Celestial object and Celestial body redirect here. For other uses, see Celestial (disambiguation). This article is about naturally occurring objects. For artificial objects, see Satellite. Astronomical objects or celestial objects are naturally… …   Wikipedia

• observation — noun 1 examination ADJECTIVE ▪ careful, close, detailed ▪ direct, first hand ▪ systematic ▪ casual …   Collocations dictionary