ephemeris
Americannoun
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ephemerides
plural
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a table showing the positions of a heavenly body on a number of dates in a regular sequence.
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an astronomical almanac containing such tables.
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Archaic. an almanac or calendar.
noun
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a table giving the future positions of a planet, comet, or satellite
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an annual publication giving the positions of the sun, moon, and planets during the course of a year, information concerning eclipses, astronomical constants, etc
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obsolete a diary or almanac
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ephemerides
plural
Other Word Forms
Noun Inflected Forms
Etymology
Origin of ephemeris
1545–55; < Latin ephēmeris day book, diary < Greek ephēmerís diary, account book, derivative of ephḗmeros; see ephemeral
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
This is the offset to apply to Chariklo’s ephemeris to fit the observations.
From Nature ● Apr. 4, 2014
For instance, under the entry newspaper occurs the attractive word ephemeris.
From Public Speaking by Clarence Stratton
All the matter is given by months, as in the solar and lunar ephemeris of our own and the British Almanac.
From Side-Lights on Astronomy and Kindred Fields of Popular Science by Simon Newcomb
As it is the oldest, so, in respect at least to number of pages, it is the largest ephemeris of the present time.
From Side-Lights on Astronomy and Kindred Fields of Popular Science by Simon Newcomb
In explaining it, I will take the ephemeris as it now is, with the small changes which have been made from time to time.
From Side-Lights on Astronomy and Kindred Fields of Popular Science by Simon Newcomb
These ephemerides of politics are not made for our slow and coarse understandings.
From The Works of the Right Honourable Edmund Burke, Vol. 06 (of 12) by Edmund Burke
Subsequent ephemerides were prepared with more practical objects.
From Side-Lights on Astronomy and Kindred Fields of Popular Science by Simon Newcomb
The leading nations publish ephemerides of this sort.
From The Reminiscences of an Astronomer by Simon Newcomb
In consequence I had no legal right to go on with the former, although the ephemerides of Europe were waiting for the results.
From The Reminiscences of an Astronomer by Simon Newcomb
At first they were not regular, annual publications, issued by governments, as at the present time, but the works of individual astronomers who issued their ephemerides for several years in advance, at irregular intervals.
From Side-Lights on Astronomy and Kindred Fields of Popular Science by Simon Newcomb
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
