| 单词 | sidereal time |
| 释义 | sidereal time noun[U] physicsspecializeduk/saɪˈdɪə.ri.əl ˌtaɪm/us/saɪˈdɪr.i.əl ˌtaɪm/timebasedon themovementof theearthinrelationto thestars 恒星时Astronomy
Examplesofsidereal timesidereal time The astrologer then converts this into the localsiderealtimeat birth in order to be able to calculate the ascendant and midheaven. From Wikipedia  This example is from Wikipedia and may be reused under a CC BY-SA license.The astrologer then has to convert this into the localsiderealtimeat birth in order to be able to calculate the ascendant and midheaven. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Using an object's right ascension and the localsiderealtimeit is possible to determine the time of its culmination (see hour angle). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Thesiderealtimewill be included, as well. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.When one moves eastward 15 in longitude,siderealtimeis larger by one sidereal hour (note that it wraps around at 24 hours). From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.It is practically proportional to thesiderealtime, which is also a direct measure of earth rotation. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Later, he envisioned a clock that would show every conceivable type of time, fromsiderealtimeto the rotation of the planets. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.Siderealtimeis time by the stars. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.The third method did not use the equation of time; instead, it used stellar observations to givesiderealtime, exploiting the relationship betweensiderealtimeand solar time. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.From a given observation point, a star found at one location in the sky will be found at nearly the same location on another night at the samesiderealtime. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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