Astronomers

Copernicus 1473 - 1543

Copernicus The first to theorize that the Earth revolved around the Sun Came up with theory based on observations made by the naked eye

Copernicus Did not publish his observation until near his death because he feared persecution from the catholic church

Copernicus Those before him believed in the: Geocentric Model – Earth was the center of the universe and everything revolved around it

Copernicus: theorized the- Heliocentric Model: stated that the Sun was the center of the universe and that the Earth revolved around it

Galileo 1564 - 1642

Galileo The telescope was invented by a Dutch lens maker, but Galileo was the first to point it towards the sky

Galileo - Discoveries Found the Moon to be full of craters Four moon revolving around Jupiter Discovered that Venus had phases similar to our moon…

Galileo - Discoveries The discovery of Venus’ phases confirmed Copernicus’ heliocentric model

Galileo Was put on trial by the catholic church after publishing his findings Was almost burned at the stake

Galileo Was put on trial by the catholic church after publishing his findings Was almost burned at the stake

Galileo His observations were limited due to his use of a refracting telescope:

Galileo His observations were limited due to his use of a refracting telescope: uses two Lenses to magnify objects being viewed

Galileo His observations were limited due to his use of a refracting telescope: uses two Lenses to magnify objects being viewed

Astronomer Time Line