Antisolar point: Difference between revisions
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Denelson83 (talk | contribs) Locating antisolar point on one's shadow |
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[[Image:Subparhelic circle flickr fdecomite.jpg|thumb|250px|A photo centred on the antisolar point featuring various antisolar haloes as viewed from a flight between Brussels and Madrid, August 07, 2006.<br /><small>Photo: Francesco De Comité.</small>]] |
[[Image:Subparhelic circle flickr fdecomite.jpg|thumb|250px|A photo centred on the antisolar point featuring various antisolar haloes as viewed from a flight between Brussels and Madrid, August 07, 2006.<br /><small>Photo: Francesco De Comité.</small>]] |
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The '''antisolar point''' is the imaginary point on the [[celestial sphere]] exactly opposite the [[Sun]]. It is where [[anticrepuscular rays]] appear to converge, and on a moonless night away from city lights, it is often possible to see the [[gegenschein]] there. The apex of a [[rainbow]] will also form roughly 42 degrees above the location of the antisolar point. In [[astronomy]], the sky position of the [[full moon]] and [[planet]]s when they reach [[Opposition (astronomy)|opposition]] are projected close to the antisolar point. |
The '''antisolar point''' is the imaginary point on the [[celestial sphere]] exactly opposite the [[Sun]]. It is where [[anticrepuscular rays]] appear to converge, and on a moonless night away from city lights, it is often possible to see the [[gegenschein]] there. The apex of a [[rainbow]] will also form roughly 42 degrees above the location of the antisolar point. In [[astronomy]], the sky position of the [[full moon]] and [[planet]]s when they reach [[Opposition (astronomy)|opposition]] are projected close to the antisolar point. |
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The antisolar point is easy to find during the day when the Sun is visible. It is the point on a person's shadow in the position of the person's eyes as seen from that person. |
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==See also== |
==See also== |
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Revision as of 01:34, 15 February 2012
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Photo: Francesco De Comité.
The antisolar point is the imaginary point on the celestial sphere exactly opposite the Sun. It is where anticrepuscular rays appear to converge, and on a moonless night away from city lights, it is often possible to see the gegenschein there. The apex of a rainbow will also form roughly 42 degrees above the location of the antisolar point. In astronomy, the sky position of the full moon and planets when they reach opposition are projected close to the antisolar point.
The antisolar point is easy to find during the day when the Sun is visible. It is the point on a person's shadow in the position of the person's eyes as seen from that person.
See also
 | This article related to the Sun is a stub. You can help Wikipedia by expanding it. |