SIDEREAL TIME

Pronunciation (US): (GB):

Meaning:

Measured by the diurnal motion of stars

Classified under:

Nouns denoting time and temporal relations

Hypernyms ("sidereal time" is a kind of...):

cosmic time (the time covered by the physical formation and development of the universe)

Hyponyms (each of the following is a kind of "sidereal time"):

day; sidereal day (the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day)

sidereal year (the time for the earth to make one complete revolution around the sun, relative to the fixed stars)

sidereal hour (1/24 of a sidereal day)

sidereal month (period between successive conjunctions with a star, 27.322 days)