Mr. Harrington's Sections
Reading Overview for Exam 1
Astronomical Unit (AU)
Galileo's Discoveries Using a Telescope
Chapter 3, Section 1
Kepler's Laws of Planetary
("Kepler's Three Laws")
Focus (of an ellipse)
Suggested Review Questions
Chapter 1 Review Question
What is the difference between our solar system, our galaxy, and the universe?
Chapter 2 Review Questions
Give two ways to demonstrate that Earth is spherical.
What fraction of the celestial sphere can ever be seen from the North Pole?
What is the difference between the celestial equator and the ecliptic?
What is a constellation? What does it mean when an astronomer says, "I saw a comet in Orion last night"?
Chapter 3 Section 1 Review Questions
State Kepler's three laws in your own words.
Why did Kepler need Tycho Brahe's data to formulate his laws?