太陽系外衛星 たいようけいがいえいせい Meanings Noun exomoon; extrasolar moon Kanji 太 thick. Read as タイ. 陽 sunshine. Read as ヨウ. 系 system. Read as ケイ. 外 outside. Read as ガイ. 衛 guard. Read as エイ. 星 star. Read as セイ. Word lists Astronomy Jinuma: Japanese Dictionary · Word lists