Astronomers timeline

By levislides04
  • 162 BCE

    Hipparchus

    Hipparchus
    Hipparchus was a astronomer from a very long time ago he was born in 190bc. He was known for making accurate models of the sun and moon. Along with his model he also created trigonometry a nightmare for all students.
  • 1515

    Copernicus

    Copernicus
    Copernicus is our founding astronomer who made the first heliocentric model of the solar system.
  • 1572

    Tycho Brahe

    Tycho Brahe
    Tycho made observations of the stars and planets. His study of a new star that appeared in 1572 showed that it was farther away than the Moon.

  • Galileo Galilei

    Galileo Galilei
    First to resolve the Milky Way into individual stars. Galilei was also the first to observe, and make sketches of the phases of Venus he also discovered sunspots, and four other moons including Jupiter

  • Johannes Kelper

    Johannes Kelper
    Johannes Kelper created the 3 laws of planetary motion between 1609 and 1619 which are still used today.

  • Christian Huygens

    Christian Huygens
    Christian Huygens was the first man to have a theory about the nature of light. And in 1655 he discovered that Saturn has a flat ring around it.

  • Isaac Newton

    Isaac Newton is a very famous astronomer who is known in the science feild very well. He created Newtons laws of motion which are A body remains at rest, or in motion at a constant speed in a straight line, unless acted upon by a force. When a body is acted upon by a force, the time rate of change of its momentum equals the force.
    If two bodies exert forces on each other, these forces have the same magnitude but opposite directions( thats from wiki)

  • William Herschel

    William Herschel
    William Herschel is known for making great quality telescopes. He also discovered Uranus in 1781. He also tried to map the shape of the milky-way but failed many times.

  • Pierre-Simon Laplace

    Pierre-Simon Laplace
    First astronomer to come up with the theory that the solar system was formed from a large flattened disc and was proven to be correct recentley

  • Edwin Hubble

    Edwin Hubble
    Edwin Hubble was an astronomer who was born in 1889. His contribution to astronomy was him proving that the universe is expanding. He also disovered that there are other galaxies outside of our sun. Which he then made classification groups for.