The point in the sky directly opposite the sun during twilight, or the phenomenon of light rays appearing to originate from this point.
From anti- (opposite) + crepuscule (twilight, from Latin crepusculum). This rare astronomical term names both a location and a phenomenon.
The anticrepuscule has captivated observers for centuries—it appears in medieval artwork and inspired early photographers, yet it's essentially your eye being tricked by perspective and atmospheric scattering.
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