17.1	The Distances to the Stars
17.2	Stellar Motion
17.3	Stellar Sizes
17.4	Luminosity and Apparent Brightness
	The Inverse Square Law
17.5	Temperature and Color
17.6	The Classification of Stars
17.7	The Hertzsprung—Russell Diagram
17.8	Extending the Cosmic Distance Scale
17.9	Stellar Mass
17.10	Star Clusters
	Chapter Review