Famous Astronomers Flashcards
1
Q
Claudius Ptolemy
A
- theorized that Earth is center of universe and that all other planets and sun revolved around Earth
- correctly predicted the motions of the planets
2
Q
Nicolaus Copernicus
A
-theorized that planets revolved around sun
3
Q
Tycho Brahe
A
-made most precise observations of planets and stars of his time
4
Q
Johannes Kepler
A
- made Laws of Planetary Motion
- all planets revolve around sun in elliptical orbits
- sun not in exact center of universe
5
Q
Galileo Galilei
A
- very advanced tools for astronomy before telescopes
- proved truth of Copernican system
6
Q
Isaac Newton
A
- devised Laws of Motion
- all objects in universe are attracted to each other by gravitational force
- force of gravity depends on…
7
Q
Edwin Hubble
A
-proved that other galaxies exist beyond Milky Way
