Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso


  • William M. Irvine
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_5123-1



The gegenschein or counterglow is a faint brightness enhancement in the night sky in the direction opposite to that of the Sun (i.e., in the antisolar direction; the Sun, of course, is below the horizon at this time). The gegenschein is actually a slight brightness peak in the zodiacal light and is produced by back-scattering of sunlight from interplanetary dust particles. The gegenschein is only visible under very dark sky conditions.

See Also


Bioorganic Chemistry Dust Particle Interplanetary Dust Brightness Peak Brightness Enhancement 
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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Department of AstronomyLederle Graduate Research Tower B 619E, University of MassachusettsAmherstUSA