sidereal time
English Thesaurus
1. measured by the diurnal motion of stars (noun.time)
| hypernym | : | cosmic time, |
| definition | : | the time covered by the physical formation and development of the universe (noun.time) |
| hyponym | : | day, sidereal day, |
| definition | : | the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day (noun.time) |
| hyponym | : | sidereal year, |
| definition | : | the time for the earth to make one complete revolution around the sun, relative to the fixed stars (noun.time) |
| hyponym | : | sidereal hour, |
| definition | : | 1/24 of a sidereal day (noun.time) |
| hyponym | : | sidereal month, |
| definition | : | period between successive conjunctions with a star, 27.322 days (noun.time) |
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