1. The Hertzsprung - Russell Diagram shows the relationship between a star's absolute
and surface
2. Brightness increases as you go higher or lower on the diagram?_
3. In which direction, does temperature increase on the graph?
4. What colors are represented by the Spectral Class letters: 0 =
,A=
B =
,K=
,M=
,,Z=
5. What is the color of the hottest star?
What is the color of the coolest star?
6. Type of stars: W =
V =
7. What well known star is represented by the star labeled Y?
8. What type of star is Y?
What is temperature & color of star Y?
9. Which type of star is the letter U?
What is its color?
10. What is the temperature of star T?
What is its brightness?
11. Which star is brighter T or U?
Which star has cooler temperatures, T or U?
12. Which star is brighter X or Z?
Which star is hotter X or Z?
13. Which star is smaller X or Z?
Which star is larger V or X?
14. Does temperature increase or decrease in the Main - Sequence stars as they get brighter?
15. Why is the Sun brighter than the White Dwarfs even though the White Dwarfs are hotter? THIS QUESTION IS WORTH 45 points