Last Updated
：2025/12/20
夜光雲
Hiragana
やこううん / やこうぐも
Noun
Japanese Meaning
高層大気（中間圏付近）に現れ、太陽が地平線のすぐ下にあるときにのみ観測される、淡く青白く光る雲。夜光雲。 / 非常に高い高度（約80〜85km）に存在し、氷の微粒子によって太陽光を散乱して光って見える特殊な雲。
Easy Japanese Meaning
とても高いそらにできて、よるにうすくひかって見えるくも
Chinese (Simplified)
夜间在高空出现并呈发光现象的云。 / 形成于中间层的极高、稀薄云层，在黄昏或夜间可见。 / 日落后仍被太阳照亮、常见于高纬度地区的云。
Sense（1）
noctilucent cloud
（ canonical ）
（ romanization ）
（ romanization ）
（ hiragana historical ）
（ hiragana ）
Quizzes for review
See correct answer
The first time I saw a noctilucent cloud, it felt like I was dreaming.
The first time I saw a noctilucent cloud, it felt like I was dreaming.
See correct answer
夜光雲を初めて見た時は、まるで夢を見ているようでした。
Japanese - English
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