Search results
Results From The WOW.Com Content Network
The zenith (UK: / ˈ z ɛ n ɪ θ /, ... the zenith is the direction of reference for measuring the zenith angle (or zenith angular distance), the angle between a ...
The solar zenith angle is the zenith angle of the sun, i.e., the angle between the sun’s rays and the vertical direction.It is the complement to the solar altitude or solar elevation, which is the altitude angle or elevation angle between the sun’s rays and a horizontal plane.
Zenith distance, the angular distance along the great circle from the zenith to a celestial object, is simply the complementary angle of the altitude: ...
This page was last edited on 7 May 2021, at 17:30 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply ...
The reference plane is perpendicular (orthogonal) to the zenith direction, and typically is designated "horizontal" to the zenith direction's "vertical". The spherical coordinates of a point P then are defined as follows: The radius or radial distance is the Euclidean distance from the origin O to P.
By subtracting this from 90°, he would find that the zenith distance is 90°, which is his latitude. Observer C at the same time is at latitude 20°N on the same meridian, i.e. on the same longitude as Observer A. His measured altitude would be 70°, and subtracting this from 90° gives a 20° zenith distance, which in turn is his latitude. In ...
The angle of a celestial body with the zenith is the zenith angle (in astronomy, commonly referred to as the zenith distance).A body's angular position can also be given in terms of altitude, the angle above the geometric horizon; the altitude and the zenith angle are thus related by =.
The diagram on the right shows why the zenith distance of a celestial body is equal to the angular distance of its GP from the observer's position. The rays of light from a celestial body are assumed to be parallel (unless the observer is looking at the moon, which is too close for such a simplification).