 sidereal_day |
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| 1. | [ noun ] the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day | |
| Synonyms: | day | |
| Related terms: | sidereal_time time_unit | |
| Similar spelling: |
sidereal_year sidereal_time sidereal_hour sidereal_month |
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