gegenschein
thumb|300px|The gegenschein appears in this image as a bright spot on the diagonal band (running top left to lower right) above the Very Large Telescope. (The [[Andromeda Galaxy and Pleiades are prominent in the lower half of the image.)]]
Article
5 sectionsContents
- Explanation
- History
- See also
- References
- External links
thumb|300px|The gegenschein appears in this image as a bright spot on the diagonal band (running top left to lower right) above the Very Large Telescope. (The [[Andromeda Galaxy and Pleiades are prominent in the lower half of the image.)]]
Gegenschein (; ; ) 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.