ephemeris

1. (obsolete) A journal or diary.Examples: "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."obsolete

2. (astronomy, nautical) A table giving the apparent position of celestial bodies throughout the year; normally given as right ascension and declination.Examples: "[…]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."Synonyms: almanac