(astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities of the Earth's motions. Synonyms: TDT, terrestrial dynamical time, terrestrial time, TT.
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Words linked to "Ephemeris time" : time unit, terrestrial time, uranology, terrestrial dynamical time, TT, unit of time, astronomy, TDT |
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