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Astronomy

By atlee19
  • 140

    Ptolemy

    Ptolemy suggests geocentric theory of the universe in famous work Mathematike Syntaxis.
  • Apr 29, 1054

    Supernova observed

    Chinese astronomers observe supernova in Taurus.
  • Apr 29, 1120

    Observatory in Ciaro

    Construction of an observatory in Cairo was begun in 1120 A.D. This is possibly the first observatory built in Medieval Islam
  • Apr 29, 1543

    Heliocentric theory

    Copernicus publishes his heliocentric theory of the Universe.

  • Speed of light

    While in Paris, Danish astronomer Ole Romer measures the speed of light.

  • Newton

    The first reflecting telescope was built by Newton.
    1669 A.D. Italy

  • Halleys comet

    Halley correctly predicts the return of a comet (Halley's comet) in 1758.

  • Jupiter

    The Great Red Spot on Jupiter becomes prominent.

  • Sputnik

    Sputnik, first object to orbit the Earth, launched by the Russians.

  • School astromony

    Al Mamon founds the Baghdad school of astronomy.