| Library / English Dictionary |
SIDEREAL TIME
| Pronunciation (US): |  | (GB): | |
I. (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)
