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Astronomers marveled at the comet's coma, a luminous cloud of dust that expanded as it neared the Sun.
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Astronomers marveled at the comet's coma, a luminous cloud of dust that expanded as it neared the Sun.
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Related words
coma
IPA(Pronunciation)
Noun
Japanese Meaning
天文学: 彗星の核を取り囲む塵やガスの雲 / 光学: 理想では点状に見えるはずの像が、洋梨形にぼやけた収差（コマ収差）として現れる現象
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