Information AboutZenith |
| CATEGORIES ABOUT ZENITH | |
| celestial coordinate system | |
| arabic words and phrases | |
| technical factors of astrology | |
| astrological house systems | |
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The zenith, in Astronomy , is the point in the sky which appears directly above the observer. More precisely, it is the point on the sky with an Altitude of +90 degrees, and 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 point opposite the zenith is the Nadir . The zenith is, by definition, a point along the Local Meridian . Dates when the sun is at an observer's zenith Vernal Equinox - around March 21 - Equator Summer Solstice - around June 21 - 23.5 degrees North Autumnal Equinox - around September 23 - Equator Winter Solstice - around December 21 - 23.5 degrees South "Zenith" also means "The Highest Point" so you can use it in a phrase like: ''The Zenith of land in the world is Mount Everest .'' See also Zenith Distance . REFERENCES ''This article originates from Jason Harris' Astroinfo which comes along with KStars , a Desktop Planetarium for KDE . See and [http://edu.kde.org/kstars/index.phtml |
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