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Name: __________________________ Date: ____________ Part 1: Shading Areas on the H-R diagram From left to right between the dotted lines, shade the following colors lightly on the diagram with colored pencils: Blue, light blue, white, yellow, orange, red Part 1I: Areas on the H-R diagram For #’s 1-5, circle the name of the area on the H-R diagram where you would find each type of star. If more than one word describes the area, for example “top right” circle both words. 1. 2. 3. 4. 5. bright stars: hot stars: hot bright stars: cool dim stars: main sequence stars: top top top top top bottom bottom bottom bottom bottom left left left left left right right right right right center center center center center Part III: Plotting Stars Mark each of the following on the H-R diagram and label it as indicated. You may use page 15 of your ESRT to help you. 6. Draw and label a long diagonal line showing the approximate location of the main sequence. 7. A large circle indicating the area where you find the biggest diameter stars, labeled supergiants 8. A large circle indicating where you would find white dwarfs, labeled white dwarfs 9. A blue main sequence star labeled B 10. A red dwarf main sequence star labeled D 11. A sun-like star labeled S 12. A red giant the same color as D and the same brightness as B labeled G 13. A white dwarf the same color as B and the same brightness as D labeled wd Part 3: Getting Information from the H-R Diagram 13. Stars B and G have the same brightness. Does this mean they are the same temperature? Why or why not? 14. Stars D and G have the same color. Does this mean they are the same temperature? Why or why not? 15. What is different about star G that allows it to be the same color as D but as bright as B? Explain. 16. How can a white dwarf be so hot in temperature but still not as bright as or Sun? Part 4: Using the Chart in your ESRT Use your Earth Science Reference Tables (p. 15) and the following symbols: “ >” “<” or “=” to compare the following pairs of stars. The first one has been done for you. > 1. LUMINOSITY: Rigel Procyon B 2. LUMINOSITY: Sirius Deneb 3. LUMINOSITY: Betelgeuse Barnard’s Star 4. LUMINOSITY: Sun 40 Eridani B 5. TEMPERATURE: 40 Eridani B Proxima Centauri 6. TEMPERATURE: Polaris Spica 7. TEMPERATURE: Aldebaran Pollux 8. TEMPERATURE: Sun Alpha Centauri 9. TEMPERATURE: Betelgeuse Barnard’s Star