Observing the Moon — The waxing gibbous Moon as observed from Earth The Moon is Earth s largest natural satellite and the nearest major celestial object. Observing the Moon can be accomplished by using a variety of instruments ranging from the naked eye to large… … Wikipedia
Angle of friction — Friction Fric tion, n. [L. frictio, fr. fricare, frictum,to rub: cf. F. friction. See {Fray} to rub, arid cf. {Dentifrice}.] 1. The act of rubbing the surface of one body against that of another; attrition; in hygiene, the act of rubbing the body … The Collaborative International Dictionary of English
Angle of position — Position Po*si tion, n. [F. position, L. positio, fr. ponere, positum, to put, place; prob. for posino, fr. an old preposition used only in comp. (akin to Gr. ?) + sinere to leave, let, permit, place. See {Site}, and cf. {Composite}, {Compound},… … The Collaborative International Dictionary of English
Position angle — Position angle, usually abbreviated PA, is a measurement derived from observing visual binary stars. It is defined as the angular offset in degrees of the secondary star to the primary, relative to the north celestial pole. As the example… … Wikipedia
Multi-angle Imaging SpectroRadiometer — The Multi angle Imaging SpectroRadiometer (MISR) is a scientific instrument on the Terra satellite launched by NASA on December 18, 1999. This device is designed to measure the intensity of solar radiation reflected by the Earth system (planetary … Wikipedia
Depression position finder — A DPF (left) and an azimuth scope (right) in use. A depression position finder (DPF) is an observation instrument that was used in the fire control system of the U.S. Coast Artillery to locate targets in range and/or azimuth as part of the… … Wikipedia
obliquity — taikinio sankirtos kampas statusas T sritis Gynyba apibrėžtis Kampas tarp dviejų sekyklų (akustinių bazių ir kt. stebėjimo priemonių) stebėjimo plokštumų. Matuojamas nuo 0 iki 180°. atitikmenys: angl. obliquity; observing angle rus. угол засечки… … Artilerijos terminų žodynas
taikinio sankirtos kampas — statusas T sritis Gynyba apibrėžtis Kampas tarp dviejų sekyklų (akustinių bazių ir kt. stebėjimo priemonių) stebėjimo plokštumų. Matuojamas nuo 0 iki 180°. atitikmenys: angl. obliquity; observing angle rus. угол засечки цел … Artilerijos terminų žodynas
угол засечки цел — taikinio sankirtos kampas statusas T sritis Gynyba apibrėžtis Kampas tarp dviejų sekyklų (akustinių bazių ir kt. stebėjimo priemonių) stebėjimo plokštumų. Matuojamas nuo 0 iki 180°. atitikmenys: angl. obliquity; observing angle rus. угол засечки… … Artilerijos terminų žodynas
List of astronomy acronyms — This is a compilation of acronyms commonly used in astronomy. Most of the acronyms are drawn from professional astronomy and are used quite frequently in scientific publications. However, a few of these acronyms are frequently used by the general … Wikipedia