Space

Astonomy

By Jackie Dawsey
  • 100

    Ptolemy was born in Greece in 100 AD

    Ptolemy was born in Greece in 100 AD
    Ptolemy was born in Greece in 100 AD. He wrote an almagest and the theory that planets turn around thier own centers as well as orbiting around the Earth.
  • 276

    Eratosthenes was born in Greece in 276 BC

    Eratosthenes was born in Greece in 276 BC
    Eratosthenes was born in Greece in 276 BC. He measured the circumference of the Earth.
  • 560

    Pythagoras was born in 560 BC

    Pythagoras was born in 560 BC
    Pythagoras was born in Greece in 560 BC. He is (With our knowledge) our first born astronomer. He thought all celestial bodies (Stars,Planets,and Moons) revolved around a fire in the center of the Earth.
  • Feb 19, 1473

    Copernicus was born in Poland in 1473

    Copernicus was born in Poland in 1473
    Copernicus was born in Poland in 1473. He was the first to believe all planets revolve around the sun.
  • Dec 14, 1546

    Brahe was born in Denmark in 1546

    Brahe was born in Denmark in 1546
    Brahe was born in Denmark in 1546. He developed new and more accurate instruments for measuring the movement of stars and planets.
  • Feb 15, 1564

    Galileo was born in Italy in 1564

    Galileo was born in Italy in 1564
    Galileo was born in Italy in 1564.He proved that the planets revolved around the sun.
  • Dec 27, 1571

    Kepler was born in Germany in 1571

    Kepler was born in Germany in 1571
    Kepler was born in Germany in 1571. He developed three laws regarding planetary motion. The first law states that the sun is the center of the universe and that the planets revolve around it in elliptical orbits. The second law states that planets move faster when thier orbits bring them closer to the sun. The third law is a mathmatical formula used to determine the distance of a planet from the sun.

  • Newton was born in England in 1643

    Newton was born in England in 1643
    Newton was born in England in 1643. He added the laws of motion and gravity.

  • Herschel was born in Germany in 1738

    Herschel was born in Germany in 1738
    Herschel was born in Germany in 1738. He discovered a new planet.

  • Eudoxus was born in Greece in 408 BC

    Eudoxus was born in Greece in 408 BC
    Eudoxus was born in Greece in 408 BC. He was the first to develop the theory that the stars and planets are spheres that move in concentric circles (evenly spaced within each other) around the Earth.

  • Aristotle was born in Greece in 384 BC

    Aristotle was born in Greece in 384 BC
    Aristotle was born in Greece in 384 BC.He beleived the planets move in elliptical,or oval shaped orbits.

  • Hipparchus was born in Turkey in 190 BC

    Hipparchus was born in Turkey in 190 BC
    Hipparchus was born in Turkey in 190 BC. He used mathmatics to determine the lines of latitude and longitude.