Download Astronomy Notes 1.4: Early Astronomers

Name:
Class:
Date:
Astronomy Notes 1.4: Early Astronomers
Nationality
Lived
ARISTOTLE
Greek
384 B.C.
to
322 B.C.
PTOLEMY
Greek
90 A.D.
to
168 A.D.
COPERNICUS
Polish
1473
to
1543
GALILEO
Italian
1564
to
1642
Important
Contributions
- Made
observations about
what he saw and
inspired others
after him to find
answers.
- Proof that the
earth was a sphere.
- Almagest: map of
the orbits of the
Sun, Moon, Planets
-Books and papers
on his observations
and his thoughts.
Universe/Earth =
Sphere
Earth = center of
the universe
Earth = center of
the universe
Epicycles = objects
in space revolved
on smaller circles
around earth
Sun = center of
the system of
planets/moons
-First to think
about heliocentric
system
-Introduced the
telescope for
astrology
-Observed moons
of Jupiter, Venus,
Saturn, and sun
spots.
Geocentric Theory – EARTH centered system
Draw:
Heliocentric Theory – SUN centered system
Draw:
Astronomy
Theory
Sun = center of
the system of
planets/moons