Antisolar point

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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.

[edit] See also

• Heiligenschein
• Subparhelic circle
• Sylvanshine

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