Astronomers Copernicus 1473 1543 Copernicus The first to

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

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

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

• The discovery of Venus’ phases confirmed Copernicus’ heliocentric model

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

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

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

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

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

Astronomer Time Line