Encyclopedia > Zenith

  Article Content

Zenith

The zenith is the point in the sky where you are looking when you look 'straight up' from the ground. More precisely, it is the point on the sky with an altitude of +90 Degrees; it is the pole of the horizontal coordinate system. Geometrically, it is the point on the celestial sphere intersected by a line drawn from the center of the Earth through your location on the Earth's surface.

The zenith is, by definition, a point along the local meridian.


This article originates from Jason Harris' Astroinfo which comes along with KStars, a Desktop Planetarium for Linux/KDE. See http://edu.kde.org/kstars/index.phtml



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Scandinavian Institute of Comparative Vandalism

... Vandalism - Wikipedia <<Up     Contents Scandinavian Institute of Comparative Vandalism Founded in 1961 by Asger Jorn and. In 1965 the ...