# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/edmond-halley
# Generated: 2026-08-31T19:34:46.477Z

schema: https://schema.org/Person
url: "https://fame.am/person/edmond-halley"
name: "Edmond Halley"
slug: "edmond-halley"
description: "He predicted a comet's return sixteen years after his own death, and got it right — the first proof that something beyond the planets could orbit the Sun on a schedule."
tagline: "English astronomer, mathematician, geophysicist, meteorologist and physicist (1656–1742)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Edmond_Halley_072.jpg"
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  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1656-11-08"
deathDate: "1742-01-25"
livingStatus: "DECEASED"
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ranks:
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  category: 96
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# bio (long form, separated for readability)
bio: |
  Halley built an observatory on Saint Helena in 1676–77 and catalogued the southern stars, recording Mercury's transit across the Sun and realizing Venus could be used to measure the solar system's true scale. Back in England, made a fellow of the Royal Society with the king's help, he bankrolled and pushed Isaac Newton to publish the Principia Mathematica in 1687. From his observations in September 1682, Halley used Newton's gravity to calculate that the comet would return every 75 or 76 years — he published the periodicity in 1705. The comet came back on schedule in 1758, sixteen years after his death, and took his name. He spent 1698 onward making sailing expeditions to chart terrestrial magnetism, and in 1718 discovered that the "fixed stars" actually move.