Aspiring astronomers study stars. They compare stars and explain the relationship between radius, mass, and diameter. By creating a star simulation, they discover how a binary star system's orbit can cause changes in the observed...

An excellent website detailing how a star's properties can be determined, and how these properties lead to the way a star is classified.

This 2-5 day lesson plan investigates the diameter, radius and mass among several stars in order to understand stellar behavior, particularly in a binary system.

This page details the life cycle of a star, and includes information on medium-sized and massive stars, plus a glossary and a question.

[Free Registration/Login Required] Have you ever looked into the night sky and wondered where all those millions and millions of stars come from? Find out here with a mini astronomy lesson! You'll discover what stars are made of and how...