Ancient Astronomers

Timeline created by LeeHaywood
  • -276 BCE


    Eratosthenes of Cyrene was a Greek polymath: a mathematician, geographer, poet, astronomer, and music theorist. He was a man of learning, becoming the chief librarian at the Library of Alexandria.
  • 100

    Claudius Ptolemy

    Claudius Ptolemy was a mathematician, astronomer, geographer and astrologer who wrote several scientific treatises, three of which were of importance to later Byzantine, Islamic and Western European science.
  • Feb 19, 1543

    Nicolaus Copernicus

    Nicolaus Copernicus was a Renaissance-era mathematician and astronomer, who formulated a model of the universe that placed the Sun rather than Earth at the center of the universe, in all likelihood independently of Aristarchus of Samos, who had formulated such a model some eighteen centuries earlier.
  • Dec 14, 1546

    Tycho Brahe

    Tycho Brahe was a Danish nobleman, astronomer, and writer known for his accurate and comprehensive astronomical observations. He was born in the then Danish peninsula of Scania. Tycho was well known in his lifetime as an astronomer, astrologer, and alchemist. Born, December 14, 1546, Died October 24, 1601
  • Dec 27, 1571

    Johannes Kepler

    Johannes Kepler was a German astronomer, mathematician, and astrologer. He is a key figure in the 17th-century scientific revolution, best known for his laws of planetary motion, and his books Astronomia nova, Harmonices Mundi, and Epitome Astronomiae Copernicanae.
  • Sir Isaac Newton

    Sir Isaac Newton PRS was an English mathematician, physicist, astronomer, theologian, and author who is widely recognised as one of the most influential scientists of all time and as a key figure in the scientific revolution.
  • Albert Einstein

    Albert Einstein was a German-born theoretical physicist who developed the theory of relativity, one of the two pillars of modern physics. His work is also known for its influence on the philosophy of science.