A photo centred on the antisolar point featuring various antisolar haloes as viewed from a flight between Brussels and Madrid, August 07, 2006. Photo: Francesco De Comité. (*)
The antisolar point or anthelic 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.
* Subparhelic circle
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