Johannes Kepler

By: Braxton Salden

The one who discovered that the Earth orbits the sun !!!

1571-1630

German Astronomer

Johannes Kepler’s Childhood

Johannes Kepler was born on December-27-1571 and in a small town called Weil der Stadt in Swabia in Southwest Germany. He also had 6 other siblings , but 3 died at an early age. When Johannes was born him and his family became very poor. In 1576 him and his family moved to Leonberg.

Johannes was born prematurely and was a weak and sickly child. He also impressed travelers at his grandfathers inn with his phenomenal mathematic faculty. In 1577 he got to see the great comet! When he was 9 he observed the lunar eclipse of 1580! Unfortunately he suffered smallpox as a kid which gave him crippled hands, weak vision.

Swabia, Germany

Weak and sick

Grandfathers inn

Johannes Kepler

3 siblings dead

Johannes as an Adult!-Johannes Kepler went to Tubingen for college!

-Johannes Kepler also worked as a math teacher in Graz, Austria!

-Kepler was married 2 times.

-He had 5 children with his first wife Barbara Mueller , the first children died and so the last three children were 2 boys and 1 girl.

-He also had 6 children with his second wife Susanna so in total Johannes Kepler had 11 kids who made it to adulthood!

-Michael Maestlin, Nicolaus Copernicus, Tycho Brahe,Ptolemy, Galileo Galilei, Pythagoras, and many other contemporaries of his time influenced him!

Kepler’s First Law!The orbit of a planet about the Sun is an ellipse with the Sun's center of mass at one focus

Kepler’s Second Law!A line joining a planet and the Sun sweeps out equal areas in equal intervals of time.

The squares of the periods of the planets are proportional to the cubes of their semi-major axes.

Kepler’s Third Discovery!

Referenceshttp://www.einstein-website.de/biographies/kepler_content.html

http://www.keplersdiscovery.com/

http://www.famousscientists.org/johannes-kepler/

http://lifestyle.iloveindia.com/lounge/johannes-kepler-2776.html

http://www-history.mcs.st-and.ac.uk/Biographies/Kepler.html

Google.com (for pictures)

http://www.johanneskepler.com/

http://wiki.answers.com/Q/What_college_did_Johannes_Kepler_go_to

http://wiki.answers.com/Q/How_many_children_did_Johannes_Kepler_have

http://wiki.answers.com/Q/Where_did_Johannes_Kepler_work_at

http://wiki.answers.com/Q/Who_influenced_Johannes_Kepler