Last Updated
：2025/11/28
sidereal rotation period
Noun
Japanese Meaning
（天文学）惑星が遠方の恒星を基準とし、一回転するのに要する時間、すなわち恒星自転周期。 / 与えられた惑星における恒星自転周期（地球の場合の恒星日を惑星に置き換えた概念）。
（ plural ）
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(astronomy) The sidereal day of a planet. (I.e., in the definition for sidereal day
, replace Earth
by the given planet.)
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sidereal rotation period
Astronomers measured the sidereal rotation period of the newly discovered exoplanet to study its climate patterns.
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Astronomers measured the sidereal rotation period of the newly discovered exoplanet to study its climate patterns.
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