Located on or relating to the direction opposite to the sun; pointing away from the sun.
From 'anti-' (opposite) plus 'solar' (from Latin 'solaris,' relating to the sun). This is an astronomy term describing spatial relationships in the sky.
The 'antisolar point' is the spot in the sky directly opposite the sun as you look at it—it's why you can sometimes see a ghostly rainbow called a 'glory' in the antisolar direction when you fly in an airplane!
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