sidereal time

English

Pronunciation

  • IPA(key): /saɪˈdɪə.riəl taɪm/, /səɪˈdɪə.riəl taɪm/

Noun

sidereal time (uncountable)

  1. (astronomy) Time measured by the apparent diurnal motion of the vernal equinox; approximated by that based on the rotation of planet Earth relative to the seemingly fixed stars.

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Further reading

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