Azimuth is the horizontal component of a direction (compass direction), measured around the horizon, from the north toward the east (i.e., clockwise) in astronomy and geodesy and from the south toward the west (i.e., clockwise) in surveying. It is usually expressed in degrees. Compass in a wooden box A compass (or mariners compass) is a navigational instrument for finding directions on the earth. ... Horizon. ... {{Otheruses4|north the direction}} [[Image:CompassRose16_N.png|thumb|250px|right|[[Compass rose]] with north highlighted and at top]] {{wiktionary}} <nowiki>North is o<nowiki>ne of the [[4 (numbe</nowiki> Block quote r)|four]] cardinal directions, specifically the direction that, in Western culture, is treated as the primary direction: north... A clockwise motion is one that proceeds like the clocks hands: from the top to the right, then down and then to the left, and back to the top. ... A giant Hubble mosaic of the Crab Nebula, a supernova remnant Astronomy is the science of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earths atmosphere (such as auroras and cosmic background radiation). ... It has been suggested that geodetic system be merged into this article or section. ... A compass rose with South highlighted South is most commonly a noun, adjective, or adverb indicating direction or geography. ... A clockwise motion is one that proceeds like the clocks hands: from the top to the right, then down and then to the left, and back to the top. ... Surveyor at work with a leveling instrument. ... A degree (in full, a degree of arc, arc degree, or arcdegree), usually symbolized °, is a measurement of plane angle, representing 1／360 of a full rotation. ...

Azimuth is also terms used in mining for a similar, but slightly different angle: azimuths and meridian angles are used to name any angle measured clockwise from any meridian. This article is about mineral extraction. ...

In the horizontal coordinate system, also used in celestial navigation and satellite dish installation, azimuth is one of the two coordinates. The other is altitude, sometimes called elevation above the horizon. See also: Sat finder. The horizontal coordinate system is a celestial coordinate system that uses the observers local horizon as the fundamental plane. ... Celestial Navigation is the 15th episode of The West Wing. ... Sky Digital mini-dish Astros mini-dish. Special dish for up to 16 satellite positions (Ku-band) Satellite dish antenna for C-Band Satellite Dishes installed on a apartment complex A satellite dish is a type of parabolic antenna designed with the specific purpose of transmitting signals to and... In mathematics as applied to geometry, physics or engineering, a coordinate system is a system for assigning a tuple of numbers to each point in an n-dimensional space. ... In astronomy and surveying, altitude (sometimes called elevation) is one of the two coordinates of the horizontal coordinate system, and refers to the vertical angle from the horizon. ... The word Finder can refer to: Finder - a core component of the Apple Macintosh operating system, responsible (among other things) for file management Finder - a comic book series by Carla Speed McNeil. ...

There are a wide variety of azimuthal map projections. They all have the property that directions (the azimuths) from a central point are preserved. The Mercator projection shows courses of constant bearing as straight lines. ...

In three-dimensional polar coordinate systems, including cylindrical coordinates and spherical coordinates, the azimuth of a point is the angle between the positive x-axis and the projection of the vector from the origin to the point onto the xy-plane (the component of the vector in the xy-plane). In cylindrical coordinate, theta θ is almost universally used to represent the azimuth. Although there are several conventions in spherical coordinates, the azimuth is usually denoted by either theta θ or phi φ. This article describes some of the common coordinate systems that appear in elementary mathematics. ... 2 points plotted with cylindrical coordinates The cylindrical coordinate system is a three-dimensional coordinate system which essentially extends circular polar coordinates by adding a third coordinate (usually denoted ) which measures the height of a point above the plane. ... A point plotted using the 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, and the azimuth angle... An angle is the figure formed by two rays sharing a common endpoint, called the vertex of the angle. ... A vector going from A to B. In physics and in vector calculus, a spatial vector, or simply vector, is a concept characterized by a magnitude and a direction. ... Two intersecting planes in three-dimensional space In mathematics, a plane is a two-dimensional manifold or surface that is perfectly flat. ... Look up Θ, θ in Wiktionary, the free dictionary. ... Look up Φ, φ in Wiktionary, the free dictionary. ...

Azimuth is often — some consider incorrectly — referred to as a bearing. Nowadays in astronomy, azimuth is nearly always measured from the north. In former times, it was common to refer to azimuth from the south, as it was then zero at the same time the hour angle of a star was zero. This assumes, however, that the star (upper) culminates in the south, which is only true for most stars in the Northern Hemisphere. In navigation, a bearing is the clockwise angle between a reference direction (or a datum line) and the direction to an object. ... A giant Hubble mosaic of the Crab Nebula, a supernova remnant Astronomy is the science of celestial objects (such as stars, planets, comets, and galaxies) and phenomena that originate outside the Earths atmosphere (such as auroras and cosmic background radiation). ... In astronomy, an objects hour angle (HA) is defined as the difference between the current local sidereal time (LST) and the right ascension () of the object: HAobject = LST - object Thus, the objects hour angle indicates how much sidereal time has passed since the object was on the local... STAR is an acronym for: Organizations Society of Ticket Agents and Retailers], the self-regulatory body for the entertainment ticket industry in the UK. Society for Telescopy, Astronomy, and Radio, a non-profit New Jersey astronomy club. ... In astronomy, the culmination, at a given point, of a planet, star, constellation, etc. ... The Northern Hemisphere is the half of a planets surface (or celestial sphere) that is north of the equator (the word hemisphere literally means half ball). On the Earth, the Northern Hemisphere contains most of the land and about 88-90% of the human population. ...

In aviation, azimuth is used to determine headings or the direction in which to fly. Aviation refers to flying using aircraft, machines designed by humans for atmospheric flight. ...

For magnetic tape drives, azimuth refers to the angle between the tape head(s) and the tape medium. DDS tape drive. ...

The word 'azimuth' is derived from the Arabic 'as-sumūt' which means 'the ways', referring to the ways or directions that you can face.

See also

Nautical Portal

• Azimuthal quantum number
• Longitude
• Magnetic declination
• Zenith