Models of the Solar System

Ancient observers included the ___________, __________, and _______________.

The 1st law of planetary motion states that the orbits of the planets are ___________________.

Kepler came up with the laws of planetary __________________.

Ptolemy believed that small ________ were carried along by big __________.

Which astronomer convince people the heliocentric model was correct?

The first astronomer to use a telescope was _______________.

A Greek astronomer who believed in the geocentric model was ______________________

The model that states the arrangement of how planets move around the sun is called the _______.

Galileo also discovered ___________, ________________, _________________

The astronomer ________ developed the idea that planets moved around the sun. 

Danish astronomer who said the sun & moon revolve around the earth & planets around the sun. 

After years of calculation _______________ found the orbit of each planet is an ellipse. 

Who was Brahe's assistant? 

In the geocentric model, _____________________ is at the center of revolving planets and stars