Oort Cloud
present participle of yowl
(astronomy) The Solar System's Oort cloud, extending from 50,000 to 100,000 astronomical units (approximately 1 light year) from the sun; supposedly the source of most comets around the Solar System.
Third-person singular simple present indicative form of carbonise
In a disembodied manner.
天文学者たちは、長周期彗星が太陽系のオールトの雲（太陽から約5万〜10万天文単位、約1光年の範囲に広がる氷の小天体の球状の殻）から発生すると考えている。
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