| 单词 | sidereal time |
| 释义 | sidereal time (once / 147742 pages) n WORD FAMILY sidereal time: sidereal times USAGE EXAMPLESWhen time is calculated by the stars it is called sidereal time; when by the sun, solar, or apparent time. Jones, Thomas P., Conversations on Natural Philosophy...(2011) "Billy, tell me what they mean by 'sidereal time.'" Jacks, L. P. (Lawrence Pearsall), All Men are Ghosts(2011) II.—The stars and their diurnal motion 10 Finding the stars—Their apparent motion—Latitude—Direction of the meridian—Sidereal time—Definitions. Comstock, George C., A Text-Book of Astronomy(2011) n measured by the diurnal motion of stars Hypo|Hyper day, sidereal day the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day sidereal yearthe time for the earth to make one complete revolution around the sun, relative to the fixed stars sidereal hour1/24 of a sidereal day sidereal monthperiod between successive conjunctions with a star, 27.322 days cosmic time the time covered by the physical formation and development of the universe |
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