![]()
出典:Wiktionary
出典:『Wiktionary』 (2026/01/05 18:00 UTC 版)
From New Latin ephēmeris, from Ancient Greek ἐφημερίς (ephēmerís, “diary, calendar”), from ἐφήμερος (ephḗmeros, “daily”).
ephemeris (plural ephemerides or ephemerises)
From the Ancient Greek ἐφημερῐ́ς (ephēmerĭ́s, “diary”, “journal”, especially “a military record”; “day-book”, “account-book”), from ἐφήμερος (ephḗmeros, “living but a day”, hence “short-lived”; “for the day”, “daily”), from ἐπ(ί) (ep(í), “[motive] for”) + ἡμέρα (hēméra, “day”).
ephēmeris f (genitive ephēmeridis or ephēmeridos); third declension
| Third-declension noun. | Third-declension noun (Greek-type, normal variant).
In poetry. |
出典:Wikipedia
出典:『Wikipedia』 (2011/07/01 23:02 UTC 版)
An ephemeris (plural: ephemerides; from the Greek word ἐφημερίς ephēmeris "diary", "journal") is a table of values that gives the positions of astronomical objects in the sky at a given time or times. Different kinds of ephemerides are used for astronomy and astrology. Even though this was also one of the first applications of mechanical computers, an ephemeris will still often be a simple printed table.