gegenschein是什么意思？

gegenschein

英['geɪgənʃaɪn] 美['geɪgənˌʃaɪn]

• n. 对日照；

英英词典释义

• Noun
  1. 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