It's Full of Stars
Web Sites
ExploraTour - How to Build a Star
ExploraTour: A Peek into the Lives of the Stars
How hot is that Star? (HR Diagram)
The Hertzsprung-Russell Diagram
Northern Hemisphere constellations
An Astronomy Course For Students Using the Internet
Answers to Astronomy Questions
Why is the sky blue and why is the Sun red at sunrise and sunset?
Why do the stars appear to twinkly while the planets don't?
What units are used to measure distance in astronomy?
How do astronomers calculate distances without using parallax?