en

sidereal time

1

Terminological databases

Kosmoseteaduse ja -tehnoloogia terminibaas

ID 575918 Last modified 28.10.2025
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Domain astronomytime and calendars
  • astronoomiline ajamõõt, mille alus on täheööpäev kui tähistaeva näiv täispööre
  • time measured by the rotation of Earth with respect to the stars, which are considered fixed in position
täheaeg
Usage examples
  • Õiendid leiame, arvestades, et täheaeg läheb keskmisest päikeseajast ühe minuti jooksul ette 0,16 sekundit ja ühe tunni jooksul 9,86 sekundit.
sidereal time
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.

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