Ancient Astronomy

Johannes Kepler

________- tried to figure out how the planets move.

Galileo

________- Very experimental and held lots experiments.

brightness of stars

They defined the position and ________ and had very close to accurate distance down (Hipparchus 150 BC)

Dynamics

________ describes WHY the motion occurs- Newtons Laws.

Tycho Brahe

________- Scientist, knew the king of Poland who gave him an island.

Friction

________ is a force.

Venus

He (Galileo) observed the phases of ________, applied laws of motion to astronomy, observed the 4 largest moons of Jupiter, observed sunspots and analyzed them, and observed the rings of Saturn.

entire electromagnetic spectrum

The light collected can range over the ________.

Aristarchus of Samos

________ (260 BC) suggested that the earth WAS NOT the center of the solar system due to observers not being able to observe any stellar parallax.

Kinematics

________ describes HOW the motion changes given an initial set of conditions- kinematic equations.

Telescopes

________ that focus visible light are called optical telescopes.

Constellations

________ are patterns in the sky.

Tycho Brahe

Scientist, knew the king of Poland who gave him an island

Johannes Kepler

tried to figure out how the planets move

Galileo

Very experimental and held lots experiments

Celestial Sphere

sphere of stars

Celestial Poles

The extension of the earths axis to where it crosses the celestial

• Kinematics describes HOW the motion changes given an initial set of conditions

kinematic equations

Dynamics describes WHY the motion occurs

Newtons Laws