ephemeris

名词 n.
中文释义
英 /ɪˈfɛməɹɪs/    美 /ɪˈfɛməɹəs/

英文释义

名词 n.
  1. A journal or diary. obsolete
    — Wee heard the King was solacing at the Caspian Sea, whither now wee are travelling. Till then let us keepe an Ephemerides or day-journey.
  2. A table giving the apparent position of celestial bodies throughout the year; normally given as right ascension and declination.
    — […]Mr. Samuel got 150 pounds of bread, with a small quantity of rum and wine, also a quadrant and compass; but he was forbidden on pain of death to touch either map, ephemeris, book of astronomical observations, sextant, timekeeper, or any of my surveys or drawings.
  3. Computer software that calculates the apparent position of celestial bodies.

词形变化

ephemerides plural ephemerises plural

词汇关系

衍生词
ephemeris time
相关词
ephemerid ephemeride

词源

From New Latin ephēmeris, from Ancient Greek ἐφημερίς (ephēmerís, “diary, calendar”), from ἐφήμερος (ephḗmeros, “daily”).
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