Chapter 10 Homework

Chapter 10 Homework - Chapter 10 Fill In the Blank 1....

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Chapter 10 Fill In the Blank 1. Parallax measurements of the distances to the stars nearest Earth use two AU as a baseline. 4. The smallest stars normally plotted on the H-R diagram are white dwarfs . 5. The smallest main-sequence stars are larger (larger/smaller) than the planet Jupiter. 9. The Sun has a spectral type of G . 10. The H-R diagram is a plot of surface temperature on the horizontal scale versus luminosity on the vertical scale. 11. The band of stars extending from the top left of the H-R diagram to its bottom right is known as the main sequence . Review and Discussion 1. How is stellar parallax used to measure the distances to stars? 2. What is a parsec? Compare it to the astronomical unit. 5. What is the difference between absolute and apparent magnitude? 6. How do astronomers measure star temperatures? 8. What information is needed to plot a star on the Hertzsprung-Russell diagram? 9. What is the main sequence? What basic property of a star determines where it lies on
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This homework help was uploaded on 04/02/2008 for the course ASTR 101 taught by Professor Caffo during the Fall '06 term at New Mexico.

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Chapter 10 Homework - Chapter 10 Fill In the Blank 1....

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