Encyclopedia > Zenith

  Article Content


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
Kuru Kuru Kururin

... to collect, record times to beat, and a gold star for getting through the level without any accidents. Kururin was released in Japan and Europe but not in th ...

This page was created in 38.7 ms