Ptolemy Wrote Astronomy Treatise Almagest

Ptolemy an Alexandrian astronomer and mathematician wrote an astronomy treatise, Almagest in 140 CE Continue reading

First Published Ephemeris

Let’s begin with the definition of the word Ephemeris:

Ephemeris is a table or data file giving the calculated positions of a celestial object at regular intervals throughout a period or basically a diary of celestial objects positions.
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