Ephemeris

Rarity: Rare

A topic known well beyond its field, found in many languages.

Rarity follows how well known the article is: its views on the French and English Wikipedia over a year, and the number of languages it exists in.

At a glance

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Notion

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Science and technology

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What Wikipedia says

In astronomy and celestial navigation, an ephemeris (; pl. ephemerides ; from Latin ephemeris 'diary', from Ancient Greek ἐφημερίς (ephēmerís) 'diary, journal') is a book with tables that gives the trajectory of naturally occurring astronomical objects and artificial satellites in the sky, i.e., the position (and possibly velocity) over time.

Excerpt from the Wikipedia article “Ephemeris”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

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