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Definition of sidereal period in English: sidereal periodnoun Astronomy The period of revolution of one body about another with respect to the distant stars. Example sentencesExamples - Each year is still equivalent to the sidereal period of the Earth, one revolution around the Sun.
- He discovered that in 7 cycles of 12 years, Jupiter had completed seven and one twelfth orbits, giving its sidereal period as 11.859 years (accurate to within one part in 4000).
- The names of our weekdays, and the fact that there are seven of them, probably reflect astrological assumptions concerning the significance of the sidereal periods of the planets.
- Even the sidereal period, the time for a complete orbit of the moon around the Earth, relative to an observer outside the solar system, is 27.322 Earth days, so once again is not a multiple of seven.
- Note that this is not to be confused with the sidereal period, the time for a complete orbit of Venus around the Sun, relative to an observer outside the solar system, which is 224.7 days.
Definition of sidereal period in US English: sidereal periodnoun Astronomy The period of revolution of one body around another with respect to the distant stars. Example sentencesExamples - Note that this is not to be confused with the sidereal period, the time for a complete orbit of Venus around the Sun, relative to an observer outside the solar system, which is 224.7 days.
- Even the sidereal period, the time for a complete orbit of the moon around the Earth, relative to an observer outside the solar system, is 27.322 Earth days, so once again is not a multiple of seven.
- He discovered that in 7 cycles of 12 years, Jupiter had completed seven and one twelfth orbits, giving its sidereal period as 11.859 years (accurate to within one part in 4000).
- The names of our weekdays, and the fact that there are seven of them, probably reflect astrological assumptions concerning the significance of the sidereal periods of the planets.
- Each year is still equivalent to the sidereal period of the Earth, one revolution around the Sun.
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