Word of the Day:
ephemeris
What It Means
A table giving the apparent position of celestial bodies throughout the year; normally given as right ascension and declination.
Computer software that calculates the apparent position of celestial bodies.
Ephemeris in Context
“[…]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.”
Did You Know?
From New Latin ephēmeris, from Ancient Greek ἐφημερίς (ephēmerís, “diary, calendar”), from ἐφήμερος (ephḗmeros, “daily”).
Source and license
Adapted from Wiktionary: ephemeris (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws chose the word and reformatted its meaning, examples and origin.
Cite this entry: “ephemeris.” Word.ws, https://word.ws/ephemeris. Based on Wiktionary, CC BY-SA 4.0.
