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horizontal view of it's orbit it's going to move back and forth. This question has not been graded. The correct answer is not displayed for Written Response type questions. 1 / 1 point Suppose a neighbor makes you aware that Mars will be in retrograde motion tonight and that the planet will be rising at midnight. Comment on the following statement made by your neighbor. The person next door claims that at midnight Mars

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will rise in the west, because it is in retrograde and then move across the sky and then will set in the east. 1) the neighbor’s claim is correct in all aspects 2) the neighbor’s claim that Mars will rise in the west and set in the east is false 3) the neighbor’s claim is incorrect because only Mercury and Venus show retrograde motion 4) the neighbor’s claim is only correct in the statement that retrograde is rare and will only happen on this sp Question 18 1 / 1 poin t IMPORTANT: For the Planet quiz this week the various sizes of the computer screens that we each use creates a problem with standardization. Therefore, for Question 18 (1 point) select #2 as the correct option…Feel Free to call me 507 358-1615 for more clarification. Note: You now know that the angular distance between these stars of the Big Dipper is 5.5 degrees. To make the map scale for your screen measure the distance (inches/centimeters) between those stars. For example, if on your screen the distance is ½ inch, you now know that any measurement between stars on your screen of ½ inch equals 5.5 degrees…and inch equals 11 degrees. Face North on November 11, 2012 at 11 p.m. The Big Dipper can be seen in the low northern sky. The pointer stars of the Big Dipper point the way to Polaris the North Star. The angular separation between the pointer stars of the Big Dipper, Merak and Dubhe, is 5-1/2 degrees. Place a ruler upon your computer screen and use either inches or centimeters, record the separation distance between the pointer stars. The separation distance is now an angular scale for the sky map. Like a map scale on a highway map that say one inch represents so many miles in the real countryside your scale now allows you to measure a distance on the computer screen and convert that length into an angular measurement on the sky.
1) the map scale is about ½ inch or 1 ½ cm. equals 5.5 degrees 2) the map scale is about 1 inch or 2 ½ cm. equals 5.5 degrees Question 19 0 / 1 poin t In 18 months Jupiter moved 45 . 75 degrees with respect to the stars. Calculate the time needed for Jupiter to complete an orbit around the celestial sphere-How many months/years does Jupiter need to travel 360 degrees? ( SHOW WORK FOR CREDIT ) (360/45.75)18=141.639 months or about 12 years. This question has not been graded. The correct answer is not displayed for Written Response type questions. 45.75 degrees/18 months=2.54 degrees/month=30.49 degrees/yr=360 degrees/11.8 years 0 / 1 point Locate the positions for Saturn on May 11, 2014 at 11 p.m. (Low Southeast sky-inside the constellation Libra) and May 11, 2015 at 11 p.m. Using the information from question 18, calculate the orbital period of Saturn- How many months/years does Saturn need to travel 360 degrees?

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