astro-qs4 - Question Set#4(ASTR/Coleman STUDENT NAME(The...

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Question Set #4 (ASTR/Coleman) STUDENT NAME______________________________ (The first 10 questions are 7 points each. The rest are worth 6 points each) Consult Wikipedia or online sources about “Saturn’s oblateness” ( ) 1. What causes Saturn to be a bit squashed at its poles while fatter at the equator? Is gravity squashing the planet? Is the fast spin the cause? Is it tides from Saturn ’s moons? Is it Saturn’s fast orbit? See sections 7-16 to 7-17. Answer this question: 2. What aspect of the orbit of Neptune’s largest moon, Triton, indicates it was probably a captured object that did not originally orbit around Neptune? See Chapter 5. Answer this question: 3. A lot of exoplanets are found orbiting other stars by watching the Doppler shift of lines in a star’s spectrum. From looking at the timing and strengths of the shifts, astronomers can fairly directly determine two properties of the planet: One is the orbital period. The other is what? (A) Age of the planet (B) Planet’s d iameter (C) Planet’s c omposition (D) Planet’s mass See sections 3-5 to 3-11. Answer these questions: 4. Pick the one true statement about reflecting telescopes. Here are some choices: It uses mirrors to focus light.
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