February 26, 2010
Want to stay on top of all the space news? Follow @universetoday on Twitter Ephemerides is the plural form of ephemeris; one ephemeris, two (three, four, …) ephemerides. Why such a strange word? Why not ‘ephemerises’? Because of its Greek-via-Latin origin, and because it’s a word rarely used outside an academic/technical setting (there are only [...]
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July 23, 2009
An ephemeris is a star chart and almanac. It’s a table of values that tells the exact position of stars, planets, and other celestial bodies at given times. This chart is used in astrology and astronomy. The first known ephemeris was created in 2000 BC in India. It is called the Vedic Period and is [...]
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