AST201_midterm2_review_questions - AST 201 Midterm 2 Review...

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AST 201 Midterm 2 Review Questions, Winter 2011 This list of questions gives you an indication of the kind of questions we'll ask on the midterm. To get an 'A' on the midterm, you should be able to answer most of these questions correctly. I've marked (in bold) some of the questions that require a little extra thinking. They are the sort of questions you'd have to be able to answer to do exceptionally well ('A+') on the midterm. 1. What is the diameter of the Milky Way galaxy and roughly how many stars does it contain? 2. How far does the Sun orbit from the center of the Milky Way galaxy? 3. How much energy would a solar panel absorb if it were located 10 AU from the Sun compared to the amount it would absorb if it were 1 AU from the Sun? 4. In a given image, which star has the highest luminosity? 5. Which types of binary star systems are most commonly observed (e.g. eclipsing, spectroscopic, visual) and why? 6. Given a set of stellar spectra, pick out which one corresponds to a specified spectral class. 7. What information do you need to calculate a star's luminosity? (There are multiple possible answers.) 8. Name two methods for measuring the distances to celestial objects. Describe how each method works. 9. If two star clusters have different main-sequence turn-off points, which one is older?
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This note was uploaded on 04/14/2011 for the course ASTRONOMY 201 taught by Professor Reid during the Spring '11 term at University of Toronto- Toronto.

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AST201_midterm2_review_questions - AST 201 Midterm 2 Review...

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