Last Updated
：2025/12/07
non-periodic comets
Noun
form-of
plural
Japanese Meaning
非周期彗星（周期的な軌道ではなく、一度きりまたは不定期に太陽に接近する彗星の複数形）
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plural of non-periodic comet
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non-periodic comets
Astronomers tracked several non-periodic comets that appeared unexpectedly in the night sky.
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Astronomers tracked several non-periodic comets that appeared unexpectedly in the night sky.
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