Ephemeris

//ɪˈfɛməɹəs//

"Ephemeris" in a Sentence (3 examples)

Utilizing an ephemeris, an astronomer can calculate lunar phases and the times of rising and setting of the sun and of the moon all around the world and for any day of the year.

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.

[…]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.

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