Vertical Circle
Related Category: Astronomy: General
in astronomy, the great circle on the celestial sphere that passes from the observer's zenith through a given celestial body.
vertical circle
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VERTICAL CIRCLE - Arc of a great circle drawn from the zenith through a star and perpendicular to the horizon.
principal vertical circle,
prime vertical circle
circle of latitude
through 1 ...
parallactic angle The angle between a body's hour circle and its vertical circle. Also called position angle.
They can even spin their "planet" in a vertical circle if they can't maintain the horizontal circle.
There are three commonly detectable points of zero polarization of diffuse sky radiation (known as neutral points) lying along the vertical circle through the sun.
One of the three commonly detectable points, called neutral points, along the vertical circle through the Sun at which the degree of polarization of diffuse sky radiation goes to zero.
Prime vertical: the vertical circle perpendicular to the meridian. It passes through the E and W points.
Primum Mobile: (pron. pree-mum mo-be-lay) an old term for the supposed crystal sphere carrying the stars in their orbits around the earth.
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 ...
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.
PRIME VERTICAL
The prime vertical is a great circle on the celestial sphere that passes through the zenith. It is a vertical circle that is bisected by the meridian. Degrees run from east to west.
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.
(b) Angular distance from the north point eastward to the intersection of the celestial horizon with the vertical circle passing through the object and the zenith. [H76]
Azimuthal Quantum Number (k) ...
(a) Directional bearing around the horizon, measured in degrees from north (0°).
(b) Angular distance from the north point eastward to the intersection of the celestial horizon with the vertical circle passing through the object and the zenith.
 See also: Circle, Distance, Horizon, Sun, Energy
  
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