ncounterglowa faint spot of light in the night sky that appears directly opposite the position of the sun; a reflection of sunlight by micrometeoric material in space
Webster's Revised Unabridged Dictionary
nCounterglow(Astron) An exceedingly faint roundish or somewhat oblong nebulous light near the ecliptic and opposite the sun, best seen during September and October, when in the constellations Sagittarius and Pisces. Its cause is not yet understood. Called also Gegenschein.
Century Dictionary and Cyclopedia
ncounterglowThe light from the eastern sky after the sun has set: an apparent reflection of the sunset twilight glow, but really the independent illumination of the eastern atmospheric dust and haze by sunbeams that pass far above the observer through the upper atmosphere when the sun is below the horizon. The lower limit of the counter-glow is the twilight-arch.
ncounterglowA patch of extremely faint luminosity in the heavens always opposite to the sun. It is supposed to be connected with the zodiacal light.
The English rendering "counterglow" is also given to it.
"Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 5" by Various