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Hertzsprung-Russell Diagram (Grade 9)

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Hertzsprung-Russell Diagram

Use the H-R diagram to answer the questions below.
H-R Diagram With Text Labels - Large
1. 
A H-R diagram shows the relationship between what two properties of stars?



2. 
According to the diagram, what is the approximate temperature of the Sun?



3. 
The majority of stars are located in which region of the H-R diagram?



4. 
How does the brightness of supergiant stars compare to the brightness of dwarf stars?



5. 
The hottest stars fall in what region of the H-R diagram?



6. 
Are giant stars brighter or dimmer than supergiant stars?



7. 
Which region of the diagram would a K class star that is 100 time brighter than the Sun fall?



8. 
Which stars have high luminosity and low temperatures?



9. 
Betelgeuse is a reddish star. Based on this information, can you accurately locate Betelgeuse on the H-R diagram? Explain.



10. 
Does a star's position on the H-R diagram stay constant or does it change over time? Explain.



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