ge·gen·schein
| \ ˈgā-gən-ˌshīn
\
\
Definition of gegenschein
: a faint light about 20° across on the celestial sphere opposite the sun probably caused by backscatter of sunlight by solar-system dust
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“Gegenschein.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gegenschein. Accessed 24 May. 2022.
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Time Traveler for gegenschein
The first known use of gegenschein was in 1877
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