a 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
例句
用作名词 (n.)
The gegenschein is sunlight back-scattered off small interplanetary dust particles. 对日照是非常小的星际尘埃上的阳光反向散射。
The gegenschein is distinguished from zodiacal light by the high angle of reflection. 对日照通过高角反射在黄道带的光圈中很容易辨明。
美
['geɪgənˌʃaɪn]
