- Zenith Azimuth Coordinates
- Astronomy: ZAC
Универсальный русско-английский словарь. Академик.ру. 2011.
Zenith Azimuth Coordinates
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Azimuth — (Audio IPA|lang=US English|en us azimuth.ogg|ˈæzɪməθ) is a mathematical concept defined as the angle, usually measured in degrees (°), between a reference plane and a point. This concept is used in many practical applications including navigation … Wikipedia
Coordinates (mathematics) — Coordinates are numbers which describe the location of points in a plane or in space. For example, the height above sea level is a coordinate which is useful for describing points near the surface of the earth. A coordinate system, in a plane or… … Wikipedia
altitude and azimuth — Two coordinates describing the position of an object above Earth in a coordinate system called the altazimuth, or horizon, system, and used in astronomy, gunnery, navigation, surveying, and other fields. Altitude in this sense is expressed as… … Universalium
Curvilinear coordinates — Curvilinear, affine, and Cartesian coordinates in two dimensional space Curvilinear coordinates are a coordinate system for Euclidean space in which the coordinate lines may be curved. These coordinates may be derived from a set of Cartesian… … Wikipedia
ZAC — Zero Attenuation Concept (Academic & Science » Electronics) * Zoroastrian Association of Metropolitan Chicago (Community » Religion) * Zone Artisanale Commerciale (Business » Firms) * Zenith Azimuth Coordinates (Academic & Science » Astronomy) *… … Abbreviations dictionary
Beijing Ancient Observatory — The Beijing Ancient Observatory (zh tsp|t=北京古觀象台|s=北京古观象台|p=běi jīng gǔ guān xiàng tái) is a pretelescopic observatory located in Beijing, China. The revolutionary tools used within this ancient observatory were built in 1442 during the Ming… … Wikipedia
Spherical coordinate system — In mathematics, the spherical coordinate system is a coordinate system for representing geometric figures in three dimensions using three coordinates: the radial distance of a point from a fixed origin, the zenith angle from the positive z axis… … Wikipedia
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Geodesy — (pronEng|dʒiːˈɒdɪsi [OED] ), also called geodetics, a branch of earth sciences, is the scientific discipline that deals with the measurement and representation of the Earth, including its gravitational field, in a three dimensional time varying… … Wikipedia
Celestial coordinate system — For other uses of Celestial , see Celestial (disambiguation). Orientation of Astronomical Coordinates Orientation of the galactic, ecliptic and equatorial coordinate systems, projected on the celestial sphere, showing the galactic equator (black) … Wikipedia
MD3 (file format) — Example of two MD3 model assets from Quake III Arena that have been linked together using tags. MD3 is a model format used by the Quake 3 engine as well as its many mods. The format is used mostly for player models and non structural geometry… … Wikipedia
