Use the Starry Night Enthusiast™ program to observe the changing appearance of Saturn. Select Favourites Guides Atlas from the menu and click the Now button in the toolbar. Use the Find pane to locate and lock the view on Saturn (doubleclick the entry for Saturn). Zoom in until Saturn and its rings are clearly visible. Change the Time Flow Rate to 1 year. Describe qualitatively how the rings change orientation, as seen from Earth. Stop time. Now use the singlestep time control buttons to observe the changing aspect or orientation of the rings. During which of the next 30 years will we see the rings edge-on? Why do you see the orientation of the rings change with a period of about 30 years?
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