Johannes Kepler

Founder of Modern Astronomy


  • Was born on December 27, 1571
  • Born in the town of Weil der Stadt Wurttemberg
  • Very sickly child
  • Parents were poor
  • His father was a mercenary soldier who was gone for long periods of time
  • Died November 15, 1630


  • First to suggest that the sun rotates on an axis
  • First to explain that earths tides are caused by the moon
  • First to write science fiction
  • First to explain how a telescope works
  • He discovered the glasses that helped near-sightedness as well as far-sightedness
  • First to explain the process of vision by refraction within the eye
  • First to correctly explain planetary motion, becoming founder of celestial mechanics

Impact On Today

  • Because he found out that earth rotates on an axis, we are now able to research it more and learn more about it
  • Because of his improvement on the telescope, we are now able to look farther into space
  • He published accurate data on the positions of some stars and planets so we now know where they are located
  • He analysed how the human eye works so now we can research the topic further

The picture shows the Platonic associations or the regular solids with the classical elements: The tetrahedron corresponds to fire, the octahedron to air, the cube to earth, the icosahedron to water, and the dodecahedron to the cosmos.

Interesting Facts

  • From an early age, Johannes Kepler was immensely interested in astronomy. His interest in the field deepened when he witnessed a comet in 1577 and a lunar eclipse in the year 1580
  • Johannes mother was accused of being a witch and Johannes had to defend her from being sentenced to death
  • Kepler's family was Lutheran


Works Cited

Johannes Kepler Biography. CloudBiography. N.p., n.d. Web. 2014. <>.

"Johannes Kepler (1571-1630)." Creation. Creation Ministries International, n.d. Web. <>.

Johannes Kepler Info. Johannes Kepler Info Website, n.d. Web. <>.

Nasa. NASA, n.d. Web. 23 Oct. 2013. <>.

"Ten Fun Facts about Johannes Kepler." 10 Facts about. N.p., n.d. Web. 2014. <>.

"Johannes Kepler's Polyhedra." George W. Hart. George W. Hart, n.d. Web. 2004. <>.