This is Astrology questions please need help here. Thanks Motion of the Moon and
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This is Astrology questions please need help here. Thanks
Motion of the Moon and Eclipses Learning Goals: How do the revolution and the rotation of the Moon affect what we see in the night sky? What is the geometry of the Earth-Moon system during eclipses? Here are a variety of questions related to the motion of the Moon about the Earth and eclipses. Part I Motion of the Moon and Eclipses 1. Refer to Figure 1 and answer these questions. A. If the Moon takes approximately 30 days to orbit the Earth, and, therefore, moves through 360 degrees, through what angle on the sky does the Moon move in one day?See Figure 1. Does it move to the East or the West? Moon x degrees in 1 day 360 degrees in 30 days FIGURE 1. Motion of the Moon in its orbit around the Earth. B. Referring once again to Figure 1, if the Moon lines up with a distant star at 9 PM on one day, what angle will it make with the same star on the next day at 9 PM? C. In Figure 1, the Moon revolves counterclockwise and the Earth rotates in the same sense, both toward the east. If the Moon was on your meridian at 9 PM as shown in Figure 1, will it be on your meridian 24 hours later? D. Will the Moon reach your meridian earlier on successive nights, or later? E. Does the Moon rise earlier or later on successive nights?Explanation / Answer
A) 30 days = 360 degrees => 1 day = 360/30 = 12 degrees/ day. It will move towards east.
B) It will move 12 degrees in 24 hours so, the moon will make 24 degree angle next day at 9 pm.
C) Yes the moon will be in the same meridian in the next 24 hours because it will move only 12 more degrees in the same meridian.
D) The moon will reach later in the sucessive nights because the moon rises, transits and sets 48 minutes later each day.
E) The moon will rise later in the sucessive nights because the moon rises, transits and sets 48 minutes later each day.
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