i was needing help to answer this one please.
Here are the questions.
A12: Lunar and Solar Eclipses
Question 1: Why is an eclipse (lunar in this case) not possible at this time?
Question 2: What is the phase of the Moon during a solar eclipse? Hint: Zoom in for a closer view of the Moon.
Question 3: What is the phase of the Moon during a lunar eclipse?
Question 4: The lunar eclipse of June 26, 2010 is only partial because:
Question 5: The date of this total solar eclipse is:
Question 6: Which one of the following statements about this eclipse is correct?
A13: Precession and Nutation
Question 1: What is the precession period of the Earth?s spin axis?
Question 2: What is significant about the diameter of the precession circle?
Question 3: At what time in the past was Vega the North Star?
Question 4: When Hipparchus made his observation in the second century BC, in what constellation was the Vernal equinox in?
Question 5: What is the period of nutation?
F1: Our Star, the Sun
Question 1: Approximately how long does it take for the Sun to complete one rotation?
Question 2: Press the Run Time Forward button and observe the sky?s motion. Where on the Sun are you located?
Question 3: Use the Angular Separation Tool to measure the distance between the Sun and some of its neighbors. About how far away are our neighboring stars?
Question 4: Sometimes the solar images appear smooth and featureless. What does this tell us about the Sun?
F5: The Solar Neighborhood
Question 1: How many of the stars visible are within ten light years of the Sun?
Question 2: Use the Angular Separation Tool to list these stars in order of increasing distance from the Sun.
Question 3: What is the name of that star?
F6: The Hertzsprung-Russell Diagram
Question 1: Which of the following stars is a red giant (usually class K or M)?
Question 2: Which of the following stars is not a main sequence star?
Question 3: Which characteristics best describe the star Antares?
Question 4: Which of the following stars is a class K star with an absolute magnitude of about 5?
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Oct 07, 2020EXPERT
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