Harpalus (astronomer)

Harpalus was an ancient Greek astronomer (flor. 82nd Olympiad, ca.450 BC) who corrected the cycle of Cleostratus and invented the Nine Year Cycle. ^[1]

3 relations: Harpalus (crater), Harpalus (disambiguation), Harpalus (engineer).

Harpalus (crater)

Harpalus is a young lunar impact crater that lies on the Mare Frigoris, at the eastern edge of the Sinus Roris.

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Harpalus (disambiguation)

Harpalus or Harpalos (Ancient Greek: Ἅρπαλος) may refer to.

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Harpalus (engineer)

Harpalus or Harpalos (Ἂρπαλος) is a name reported by modern historical books (tertiary sources) as the engineer who built the pontoon bridge over the Hellespont (from Abydos to Sestos) for Xerxes in 480 BC.

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References

[1] https://en.wikipedia.org/wiki/Harpalus_(astronomer)

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