Use Starry Night Enthusiast™ to study the Moon’s path in the sky and eclipses. Open the Options pane and turn off the Local Horizon and Daylight options in the Local View layer. Under the Guides...

Use Starry Night Enthusiast™ to study the Moon’s path in the sky and eclipses. Open the Options pane and turn off the Local Horizon and Daylight options in the Local View layer. Under the Guides layer, turn on The Ecliptic and Celestial Grid. Open the Find pane and double-click the entry for The Moon. Change the field of view of the observed sky to about 15° using the Zoom buttons on the upper right of the toolbar. Note whether the Moon lies on the ecliptic. Set the Time Flow Rate to 6 minutes (adjust this if sky motion is too fast or too slow). Keeping the Moon locked in the center of your screen, set time in motion. a. In which direction does the Moon move against the background stars? Keep in mind that the celestial equator runs east-west (east is to the left) and the ecliptic intersects it at 231 ⁄2°. Ignore the Moon’s rocking motion, which is due to its rising and setting. Does it ever change direction relative to the stars? Why or why not? Describe its path relative to the ecliptic. b. Change the Time Flow Rate to 1 hour (adjust as necessary). Determine how many days elapse between successive times that the Moon is on the ecliptic. c. Set the time and date to 9 AM on July 21, 2009. Running time forward at a rate of 1 min, stop time when the Moon is closest to the Sun. Sketch the Sun and Moon on a piece of paper. Even though the Moon may not be directly over the Sun on the screen, an eclipse is occurring. What type of eclipse is it? Why might the Moon not be directly over the Sun at that time? d. Click on the Events tab, expand the Event Filters layer and des elect all but the Lunar and Solar Eclipse Events. Expand the Events Browser layer, set the Start and End dates to cover the period from 1/21/2009 to 1/21/2010 and click Find Events. Right click on each solar eclipse in turn, choose View Event, zoom back out to about 15°, and Run time forward and backward at a rate of 1 min until the Moon is again closest to the Sun. Draw the Sun and Moon. Are they separated by the same amount as in part c? If not, why not? If there is a difference, what effect does it have on the eclipse?