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Window (disambiguation) — A window is an opening in an otherwise solid, opaque surface, through which light can pass.Window may also refer to:Business* Video window, the delay between a movie s theatrical and DVD releaseComputing* Window (computing), a display rectangle… … Wikipedia
Astronomical clock — An astronomical clock is a clock with special mechanisms and dials to display astronomical information, such as the relative positions of the sun, moon, zodiacal constellations, and sometimes major planets. DefinitionThe term is loosely used to… … Wikipedia
Astronomical Ephemeris — Der Astronomical Almanac sind ein offizielles Astronomisches Jahrbuch der internationalen Astronomie (IAU) und der Geowissenschaften (IUGG). Sie werden in den USA (Naval Observatory) und London (HMSO) herausgegeben und bilden zusammen mit den… … Deutsch Wikipedia
window — n. 1 a an opening in a wall, roof, or vehicle etc., usu. with glass in fixed, sliding, or hinged frames, to admit light or air etc. and allow the occupants to see out. b the glass filling this opening (have broken the window). 2 a space for… … Useful english dictionary
Infrared window — The atmospheric window refers to those parts of the electromagnetic spectrum that are, with the earth s atmosphere in its natural state, not absorbed at all . One atmospheric window lies approximately at wavelengths of infrared radiation between… … Wikipedia
Radio window — The radio window is the range of frequencies of electromagnetic radiation that the earth s atmosphere lets through. The wavelengths in the radio window run from about one centimeter to about eleven meter waves.ee also*Atmospheric window… … Wikipedia
The Astronomical Journal — Astronomical Journal L Astronomical Journal est une revue scientifique mensuelle publiée par l université de Chicago pour le compte de l American Astronomical Society. C est l un des périodiques les plus importants dans le monde concernant l… … Wikipédia en Français
Czech Astronomical Olympiad — The Czech Astronomical Olympiad is organised for pupils of elementary and secondary schools in the Czech Republic. It is very popular among younger pupils because of the opportunity it provides to use all informational resources (with the… … Wikipedia
Kottamia Astronomical Observatory — Das National Research Institute of Astronomy and Geophysics (NRIAG) ab 1980, ab 1960 Helwan Institute of Astronomy and Geophysics (HIAG) ist eine staatliche Forschungseinrichtung für Astronomie und Geophysik in Helwan, Ägypten. Inhaltsverzeichnis … Deutsch Wikipedia
Lowest Astronomical Tide — Das Seekartennull (Abk. SKN; engl. Chart Datum) oder kurz Kartennull ist eine Bezugsebene für Tiefenangaben in Seekarten und Gezeitentabellen. Sie richtet sich nach dem niedrigsten Wasserstand. Dadurch werden bei den Tiefenangaben auch in… … Deutsch Wikipedia
