英语词汇“sidereal period”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

sidereal period n. Astronomy the period between two successive passes of a celestial object past the same point in the celestial sphere (the fixed stars), as seen from the earth; (equivalently) the time taken by an orbiting object to make one revolution around its primary, as observed relative to the celestial sphere.The sidereal period of the moon is a sidereal month (the earth being its primary); that of the earth is a sidereal year (the sun being its primary).

ΚΠ

1768 Philos. Trans. 1767 (Royal Soc.) 57 399 If the earth stood still, the spots would be hid only 13d. 23h. 10′, and their whole sidereal period being 25d. 5h. they would be visible 11d. 5h. 50′.

1875 Good Words 16 238/1 This is the sidereal period of the moon's revolution; not the synodic period, as the time from new moon to new moon is called.

1970 Jrnl. Brit. Astron. Assoc. 80 184 For Venus the commensurabilities are as follows: 13 sidereal periods of Venus = 8 sidereal years − 0.94 day [etc.].

2009 M. Heley Everything Guide to 2012 vi. 71 The sidereal period of the moon is roughly twenty-seven days and the synodic is roughly twenty-nine days.

单词	sidereal period
释义	> as lemmas sidereal period sidereal period n. Astronomy the period between two successive passes of a celestial object past the same point in the celestial sphere (the fixed stars), as seen from the earth; (equivalently) the time taken by an orbiting object to make one revolution around its primary, as observed relative to the celestial sphere.The sidereal period of the moon is a sidereal month (the earth being its primary); that of the earth is a sidereal year (the sun being its primary). ΚΠ 1768 Philos. Trans. 1767 (Royal Soc.) 57 399 If the earth stood still, the spots would be hid only 13d. 23h. 10′, and their whole sidereal period being 25d. 5h. they would be visible 11d. 5h. 50′. 1875 Good Words 16 238/1 This is the sidereal period of the moon's revolution; not the synodic period, as the time from new moon to new moon is called. 1970 Jrnl. Brit. Astron. Assoc. 80 184 For Venus the commensurabilities are as follows: 13 sidereal periods of Venus = 8 sidereal years − 0.94 day [etc.]. 2009 M. Heley Everything Guide to 2012 vi. 71 The sidereal period of the moon is roughly twenty-seven days and the synodic is roughly twenty-nine days. extracted from siderealadj. < as lemmas
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