S: Moon Log Presentation
BC: Thanks for listening! :)
FC: Moon Log- October 2012
3: Our assignment was to record the moon and it's altitude. This book is made to represent my understanding of it. The diagram on the left shows what the moon would look like from different perspectives on Earth. The moon (and every sphere) is always half lit. The phases depend on where the moon is in the sky.
4: Background: The moon has it's own rise and set times. I could not always observe it because of conflicts with weather, and rise and set times. And when that would happen, I had to use the Internet. When we were recording it, we had to list the altitude, direction, and time. The picture above is a moon rise.
5: Perspective: The moon has a 29.5 day cycle, and also rotates and revolves. The phases change every week or so. Depending on where the moon is in the sky, affects the phase it will be in. It will be different in different hemispheres. With the diagram below, it shows the different perspectives. The sun can only light half a sphere at a time. It depends how much is lit, and the perspective at which you are looking at it.
6: Full Moon and New Moon: Both of these phases occur when the moon is in front of the sun. The full moon occurs when the moon is behind the Earth, and the half that is lit is facing the Earth. The moon doesn't get covered up, because the moon has a range of 5%. A new moon occurs when the moon is in between the Earth and Sun. The side that is not lit is facing the Earth, and the side that is lit is facing the Sun.
7: Gibbous Moons: Gibbous Moons occur when the moon is in between the full and new moons. They are the obtuse angles. There are two words to represent the two types of gibbouses: waxing and waning Waning means for it to become smaller (closer to a new moon) and waxing means for it to become bigger (closer the a full moon). The one on the right is waxing, and the left is waning.
8: Waning Crescent: A waning crescent is the last step leading up to a new moon. This is at a 45 degree angle to the new moon.
9: Waxing Crescent: A waxing crescent is the first step leading up to a full moon, This is also at a 45 degree angle to the new moon.
10: First Quarter Moon: The first Quarter is the middle from being a new moon, to becoming a full moon. And this is when half is lit on the right side, it is at a 90 degree angle to the new and full moon.
11: Last Quarter: The last quarter is the middle to becoming a new moon, from being a full moon. Half is lit, but on the left side. It is also at a 90 degree angle to the full and new moon.