December 19,2011
ObjectiveAnalyze and create
the H-R DiagramStar VideoH-R Diagram notes
( 1 slide to write down)
H-R Diagram GraphTextbook pages 789-
792 questions 1-7
TEST IS THURSDAY
Agenda
Hertzprung-Russell DiagramShows the relationship between a star’s surface temperature and absolute magnitude
Used to study the lives of starsMost stars lie along the main sequence portion of the diagram
What kind of a star is the sun?
Question 1
Main SequenceAnswer
What is the H-R diagram?
Question 2
A graph that shows the relationship between a star’s temperature and absolute magnitude
Answer
What are the four main types of stars?
Question 3
Main-SequenceGiants and Supergiants
White Dwarfs
Answer