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sidereal day

Noun CEFR B2

Definitions

  1. One day of sidereal time; the time in which Earth rotates once around its axis, relative to the point of the vernal equinox (about 23 hours, 56 minutes, 4 seconds).
  2. The rotational period of Earth; the time in which Earth rotates around its axis 360 degrees.

Equivalents

4 more languages
Suomitähtivuorokausi
日本語恒星日
Nederlandssiderische dag
Românăzi siderală

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

sidereal month sidereal orbital period sidereal period sidereal rotation period sidereal time sidereal year

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