- A point on the celestial sphere 180° from the sun. It is a projection to infinity of a line from the sun through the observer.
Aviation dictionary. 2014.
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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.… … Wikipedia
antisolar — adjective Date: circa 1890 being or having a direction away from the sun < the antisolar point > … New Collegiate Dictionary
Antisolar — An ti*so lar, a. Opposite to the sun; said of the point in the heavens 180[deg] distant from the sun. [1913 Webster] … The Collaborative International Dictionary of English
Subparhelic circle — The subparhelic circle is a rare halo, an optical phenomenon located below the horizon. It passes through both the subsun, below the sun, and the antisolar point, opposite to the sun. The subparhelic circle is the subhorizon counterpart to the… … Wikipedia
rainbow — A term used to denote the well known coloured arc sometimes seen against a sunlit background of falling water drops. Rainbows are typically seen when the Sun is low in the sky, and the observer is facing a raincloud on the horizon opposite the … Dictionary of Hallucinations
Rainbow — For other uses, see Rainbow (disambiguation). Double rainbow and supernumerary rainbows on the inside of the primary arc. The shadow of the photographer s head on the bottom marks the centre of the rainbow circle (antisolar point). A rainbow is… … Wikipedia
Venus — This article is about the planet. For other uses, see Venus (disambiguation). Venus … Wikipedia
Diffuse sky radiation — A spectrum taken of blue sky clearly showing solar Fraunhofer lines and atmospheric water absorption band. Diffuse sky radiation is solar radiation reaching the Earth s surface after having been scattered from the direct solar beam by molecules… … Wikipedia
Mercury in the fiction of Leigh Brackett — The planet Mercury appears frequently as a setting for many of the stories of Leigh Brackett, and Mercury and Mercurians are frequently mentioned in other stories of the Leigh Brackett Solar System. Brackett s Mercury shares some characteristics… … Wikipedia
Sun — This article is about the star. For other uses, see Sun (disambiguation). The Sun … Wikipedia