en

sidereal day

1

Terminological databases

Kosmoseteaduse ja -tehnoloogia terminibaas

ID 575875 Last modified 28.10.2025
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Domain astronomytime and calendars
  • ajavahemik, mis vastab ühele Maa või muu planeedi või kaaslase täispöördele tähistaeva kui tausta suhtes
  • the time required for the Earth to rotate once relative to the background of the stars
täheööpäev preferred
Usage examples
  • Maa pöörlemine aeglustub pikkamööda Kuu ja Päikese poolt põhjustatud loodete mõjul, nii et täheööpäev pikeneb.
sideeriline ööpäev
sidereal day
Usage examples
  • Sidereal time is of no interest for civil timekeeping but is important in astronautics for both attitude determination and control and astrodynamics, where the orientation of a spacecraft against the stars is considered. For example, it is the sidereal day that must be used to compute the period for a geosynchronous satellite orbit.

Meteoroloogia ja klimatoloogia terminibaas

ID 521992 Last modified 14.11.2023
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Domain fenoloogiaatmosphere - climatology - meteorology - magnetosphere

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