ephemeris time

ep·he·me·ristime

uncommon

noun

(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

ephemeralness ephemerid Ephemerida Ephemeridae ephemeris ephemeron Ephemeroptera ephemeropteran Ephesan Ephesian

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