こうかん
光環
1. coronaAstronomy
2. Corona (optical phenomenon)In meteorology, a corona is produced by the diffraction of light from either the Sun or the Moon by individual small water droplets (and sometimes tiny ice crystals) of a cloud or on a foggy glass surface. The corona consists of small number of concentric colored rings around the celestial object and a central bright aureole. The angular size of the corona depends on the diameters of the cloud droplets - small droplets produce large coronae.
Read “Corona (optical phenomenon)” on English Wikipedia
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Read “Corona (optical phenomenon)” on DBpedia
Read “Corona (optical phenomenon)” on English Wikipedia
Read “光冠” on Japanese Wikipedia
Read “Corona (optical phenomenon)” on DBpedia
光冠 【こうかん】
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