sidereal time

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English

Pronunciation

  • IPA(key): /saɪ.ˈdɪə.riəl taɪm/, /səɪ.ˈdɪə.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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