Exam 4: The Origin of Modern Astronomy

Which type of curve would accurately represent a closed orbit

An apparent westward motion of a planet in the sky compared to the background stars (as viewed from Earth) when observed on successive nights is referred to as

The diagram below illustrates a portion of the model for the universe described by

Describe the Ptolemaic model of the universe. Draw a diagram of the model showing the major components of the model for Earth, the Moon, the Sun, and the five planets visible to the Greeks.