Azimuth
From LoveToKnow 1911
AZIMUTH (from the Arabic), in astronomy, the angular distance from the north or south point of the horizon to the foot of the vertical circle through a heavenly body.
azimuth
The angular distance to the foot of the vertical circle through a celestial body, measured from north around the observer's horizon. Azimuth is 0° for an object due north, 90° due east, 180° due south, and 270° due west.
Azimuth
The horizonal coordinate system depends on the location of the observer and the time of the observation. The azimuth measures the angular distance of the object east from north and parallel to the observer's horizon.
Azimuth
Related Category: Astronomy: General
(z´mth), in astronomy, one coordinate in the altazimuth coordinate system. It is the angular distance of a body measured westward along the celestial horizon from the observer's south point.
azimuth
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Altazimuth mount
An Altazimuth or alt-azimuth mount is a simple mount used for moving a telescope, camera, helostatic mirror, or solar panel along two perpendicular axes of motion.
The coordinates of a point in this system are its altitude on the vertical circle, and its azimuth westward (clockwise) along the celestial horizon from the observer's south.
celestial horizon
Azimuth ...
Altitude-Azimuth Coordinates
The conversions from H and to ( )- coordinates for an observer at latitude L are
, , , , , , , , ...
Azimuthal order
Images from Asteroseismology.org
All through the galaxy, we find stars that pulsate. Gravity makes stars spherically symmetric.
Azimuth and Elevation
An old surveyor's tele-
scope (theodolite).
The surveyor's telescope is designed to measure two such angles.
azimuth -- the compass direction (in degrees) where an object in the sky appears. (The object's altitude is also needed to pinpoint its position.) ...
Azimuth Horizontal co-ordinate of an object's position in the sky. Derived by drawing an imaginary vertical line from the object to the horizon below. The position is then expressed in degrees east from the north point.
Azimuth. Angular distance measured clockwise around the observer's horizon in units of degrees; astronomers usually take north to be 0 degrees, east to be 90 degrees, south to be 180 degrees, and west to be 270 degrees.
azimuth
The coordinate which describes an object's location in relation to its compass direction, expressed in degrees between zero and 360.
B ...
Azimuth
the angular distance of an object around or parallel to the horizon from a predefined zero point.
B ...
Azimuth The angular distance around the horizon, usually measured from north (although it is sometimes measured from south), of the great circle passing through the object and the zenith.
B ...
Azimuth is the horizontal direction or bearing of an object in the sky. It sets the line along which the altitude is measured. The azimuth is designated as the angle created by that imaginary line and true north.
Azimuth - The angular distance between the north point on the horizon eastward around the horizon to the point on the horizon nearest to the direction to a celestial body ...
azimuth
the angle along the horizon measured eastward from due north to the point on the horizon directly below an object
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Azimuth (Azi). The measurement of an object's angle, in degrees, along the horizon. Usually measured from North (0°) Part of the horizontal system of co-ordinates. For example due south would be 180° azimuth.
B ...
azimuthal ~: (azimuth ~) a class of dial which uses the sun's azimuth for indicating the time. It usually needs to be aligned N-S, and has a vertical style (if it has no dependence on altitude).
Benoy ~: see refraction ~.
Azimuth
(a) Directional bearing around the horizon, measured in degrees from north (0°).
Altazimuth Disadvantages
Unable to track objects with single axis motor drive system. For long term tracking, an altazimuth must be computer dual-axis controlled, or supported on an equatorial platform (only 1.
Altazimuth A mounting for a telescope or camera that has two, mutually perpendicular axes of rotation - one horizontal, the other vertical. This permits the telescope or camera to be slewed vertically and horizontally.
Altazimuth mounting- a telescope mounting that swings from side to side parallel to the horizon, and up and down
Angstrom unit- the hundred-millionth part of a centimeter (10-10 m) ...
Alt-azimuth star hopping
I have been using an equatorially mounted telescope since 1984 and have gotten very accustomed to the way telescope movements (left / right and up / down) follow the lines of right ascension and declination in the sky.
Alt-azimuth - Altitude-Azimuth. A telescope that moves in two axes, one left-to-right around a turntable base, and one up and down. Any part of the sky can be located with movement in these two axes.
Alt-Azimuth Mounting
A telescope mounting capable of motion parallel to and perpendicular to the horizon
Angstrom ...
The Lambert azimuthal equal-area projection is a particular mapping from a sphere to a disk. It accurately represents area in all regions of the sphere, but it does not accurately represent angles....
Azimuth starts from exactly North = 0 degrees azimuth and increases clockwise: exactly East = 90 degrees, exactly South = 180 degrees, exactly West = 270 degrees, and exactly North = 360 degrees = 0 degrees.
azimuth - The angle along the celestial horizon, measured eastward from the north point, to the intersection of the horizon with the vertical circle passing through an object.
azimuth - (n.)
The angular distance, around the horizon from the northern direction, usually expressed in angular measure from 0° for an object in the northern direction, to 180° for an object in the southern direction, around to 360°.
Azimuth of the Sun
The Tilt of the Earth's Axis -- the last 750,000 Years ...
AZIMUTH
Azimuth is a measurement in mapping astronomical objects on the celestial sphere (the sky as visible from Earth). Azimuth is the angle of the object from the observer's north point (projected onto the ).
Altazimuth Mounts
If all you want to do is look at the stars and planets then any mount that holds up your telescope and allows for easy aiming, steady viewing and comfortable use is a good mount.
An azimuthal magnetic field is one that runs east-west.
A meridional magnetic field is one that runs north-south.
The azimuthal quantum number (l = 0, 1 ... n-1), also known as the angular quantum number or orbital quantum number, specifies the shape of an atomic orbital and strongly influences chemical bonds and bond angles.
Alt-azimuth mounting
A telescope mount that has two axes of movement. One axis permits travel in the vertical axis (altitude), the other in horizontal (azimuth) travel, much in the manner of a gun turret or camera tripod.
Dobsonian mount ...
Altitude-azimuth
A type of telescope mounting that supports the weight of the telescope and allows it to move in two directions to locate a specific target.
AZ -- Azimuth.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
With the alt-azimuth mount you will need to move the scope left/right and up/down to track objects.
As you advance you may want to get a motorized mount. Eventually you will want a dobsonian or equatorial type mount.
launch azimuth The initial heading of a powered vehicle at launch, commonly applied to launch vehicles. launch complex The site, facilities, and equipment used to launch a rocket vehicle. See launch site.
The simpliest telescope mounting is an altazimuth mount. It is similar to that of a surveying transit. A fork rotates in azimuth, and bearings on the tips of the fork allow the telescope to vary in altitude.
celestial observation (NASA SP-7, 1965) In navigation, the measurement of the altitude of a celestial body, or the measurement of azimuth, or measurement of both altitude and azimuth. Also called sight.
Azimuth, the angle between north and the star (angle A in figure 4), measured along the observer's horizon. North is 0 degrees, east is 90 degrees, south is 180 degrees, and west is 270 degrees.
The Big Ear could be aimed in altitude but not in azimuth, but it was intended as a survey instrument and that wasn't a major limitation.
The inner rings of Neptune (1989N2R, 1989N3R, and 1989N4R) lack the unusual azimuthal nonuniformity exhibited by 1989N1R. 1989N2R is narrow--less than 15 kilometres in radial width--and closely resembles the nonarc regions of 1989N1R.
He replaced and added apparatus including the altazimuth telescope in 1847 and the Airy Transit Circle (thus providing the Observatory with its 4th meridian line - it is this line on which GMT is based).
Websurf astronomical information: Online tools for calculating Rising and setting times of Sun, Moon or planet, Azimuth of Sun, Moon or planet at rising and setting, Altitude and azimuth of Sun, Moon or planet for a given date or range of dates, ...
unit (AU) a unit of measurement often used within the solar system; approximately equal to 93,000,000 miles or 8 light minutes, the average distance between the Earth and the Sun astronomy the scientific study of celestial objects azimuth ...
(a) Comprising a means of measuring or precisely locating in coordinates the position of objects at any altitude or azimuth. The term is now used mainly to describe a type of mounting for a telescope. (also Alt-Az)[A84] ...
The instrument consisted of 2 co-aligned telescopes mounted together on an alt- azimuth system carried in the Space Shuttle payload bay.
4 inch f4 refractor on alt-azimuth mount
Thick objective lens started to dew over, eventually (it was a really humid and cold night).
4 inches were a bit short on aperture for some objects.
(Top) Azimuthally-averaged radial topography used in the calculation of infilling the basin with surrounding material postulated to have been excavated from it. (Bottom) Color-coded topography plotted in an equal-area projection.
Telescope mounting, altazimuth:
A mounting with two axes (one horizontal and one vertical, employing azimuth and altitude) to facilitate scanning in the horizn system.
4) Center star by using the AZIMUTH adjustment for DECLINATION. Use slewing controls for the RIGHT ACENSION. SYNC star.
The other two types of mounts for telescopes are altitude/azimuth or alt/az (usually for smaller telescopes) and dobsonian mountings (usually for larger diameter telescopes).
A major difference between geocentric and topocentric ephemerides is that no local horizon exists (and therefore derived quantities such as azimuth and elevation are not defined) for a geocentric ephemeris.
Ryder & Dopita (1994 ApJ 430, 142) applied it to compare the distributions of current star formation (from azimuthally averaged H-alpha images) to the integral of past star formation (from optical continuum images), ...
At the university observatory he set up an instrument with altitude and azimuth circles and a telescope, which accurately measured the position of celestial objects. He also held several public offices, including that of mayor of Copenhagen in 1705.
 See also: Earth, Astronomy, Sky, Horizon, Time
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