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sidéral adjectif | sidereal◼◼◼(of or relating to the stars) sidereal◼◼◼(relating to a measurement of time relative to the position of the stars) |
année sidérale nom {f} | sidereal year◼◼◼(orbital period) |
jour sidéral nom {m} | sidereal day◼◼◼(day of sidereal time) |
temps sidéral nom {m} | sidereal time◼◼◼(time measured by apparent motion of vernal equinox) |