sidereal orbital period
Abbreviation of obsolete (as a gloss for words in dictionaries) / Abbreviation of observed
(astronomy) The sidereal year of a planet. (I.e., in the definition for sidereal year, replace Earth by the given planet.)
sidereal year
Earth
An English and Scottish habitational surname from Old English, from Old English drȳġe (“dry”) + denu (“valley”). / A city in Ontario, Canada; named for Canadian farmer and politician John Dryden.
plural of quinoxalinone
火星の恒星年は、背景の恒星に対する公転周期の長さを決めます。
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