Gegenschein
type: Concept
contributor: AAS Frey.Katie
alternative label: Counterglow
broader: Night sky brightness
definition: A faint glow of light in the night sky seen exactly opposite the Sun. The gegenschein is sunlight back-scattered off millimeter-sized dust particles along the ecliptic. In comparison with zodiacal light (forward-scattered sunlight), which is triangular in shape and found near the horizon, the gegenschein is roughly circular.
modified: 2020-11-09T15:09:56.074Z
modified: 2020-11-09T15:09:44.331Z

Night sky brightness
type: Concept
narrower: Gegenschein