Gegenschein
Optical effect of interplanetary dust reflections / From Wikipedia, the free encyclopedia
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"Counterglow" redirects here. For other uses, see Belt of Venus.
Gegenschein (/ˈɡeɪɡənˌʃaɪn/; German: [ˈɡeːɡn̩ˌʃaɪn]; lit. 'counter-shine') or counterglow is a faintly bright spot in the night sky centered at the antisolar point. The backscatter of sunlight by interplanetary dust causes this optical phenomenon, being a zodiacal light and part of its zodiacal light band.