English Dictionary

SIDEREAL TIME

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 Dictionary entry overview: What does sidereal time mean? 

SIDEREAL TIME (noun)
  The noun SIDEREAL TIME has 1 sense:

1. measured by the diurnal motion of starsplay

  Familiarity information: SIDEREAL TIME used as a noun is very rare.


 Dictionary entry details 


SIDEREAL TIME (noun)


Sense 1

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)


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