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NAAP – Lunar Phase Simulator 1/11
Lunar Phase Simulator – Student Guide
Part I: Background Material
Answer the following questions after reviewing the background pages for the simulator.
Page 1 – Introduction to Moon Phases
Is there a dark side of the moon? (Note: this question can be effectively answered either yes or no, so it is important to explain your reasoning.)
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In the figure below, bisect the moon twice.
a) Draw a line (perpendicular to the direction of sunlight) that shows the half of the entire moon that is illuminated and shade the shadowed region.
b) Draw a line (perpendicular to the Earth-moon line) that shows the half of the moon visible for an observer on earth.
c) Mark the region that is both visible from earth and illuminated by the sun. That region will be the phase of the moon we on earth see.
We normally draw the phases of the moon with the terminator (the dividing line between light and shadow) from the north pole to the south pole of the moon. This is how the moon would be seen if it were on the observer’s meridian. We can use the drawing above to determine the amount of illumination and whether it is on the left or right hand side of the moon. Use the drawing above to draw the appearance of the moon in the box below.
Open the Moon Bisector Demo and use the simulator to check your answer to the above problem. Moon
Earth
sunlight
NAAP – Lunar Phase Simulator 5/11
Part III: Working with the Lunar Phase Simulator
The items below will help familiarize yourself with the controls and usability features of the simulator.
• If you have not already done so, launch the NAAP Lunar Phase Simulator
• The main panel has
2. (a) Were latitude the only control of temperature, the isotherms would run straight across the maps from east to west. Describe one region of the world where this hypothetical isotherm pattern is actually observed.
The moon is by far the biggest and most easily recognizable object in earth’s atmosphere that can be perceived by the naked eye on a cloudless night. It is hypothesized that it came into existence nearly 4.5 billion years ago, from residual debris after a planetary body collided with earth. Although, considered the runner-up to the sun as the second brightest object in the sky, its illumination is deceitful, insomuch as the moon is not a source of light, but instead reflects the sun’s illumination from the half of the moon that is in direct alignment with the sun at that time. More readily identified as a satellite of the earth rather than as a planet itself or even a star, it has a diameter a quarter of the size of earth’s size and it
The north pole on the globe map is still located at 90°N and 0°W, but it is simply a single dot on the map since the globe is a sphere.
Your answers to parts A and B should be different. Explain why. Answer: Flat map is laid out in a flat grid map and the globe is an interactive ‘globe’ that shows true position.
Have you ever considered that the moon may not be exactly what it seems to be? Science says that the moon was a result of the Earth colliding with another planet, causing a rocky mass to break free from the earth and be pulled into orbit by the force of gravity. Conspiracy theorists have considered the possibility that the moon may be something more than just a rocky mass orbiting the earth. A theory that has been created regarding our moon is called The Hollow Moon Theory. This theory tries to prove that the moon may just be a cover or a protective layer around an alien's UFO. It may be hard for some to go against scientific research, but there is a possibility that something other than a collision is responsible for the formation of our moon.
In the diagram below the sun's light is coming in from the right. The moon's location is marked at several points on its orbit. These are the points the moon was at when the sketches above were drawn. Identify each position with the letter of the corresponding sketch.
between light and shadow) from the north pole to the south pole of the moon. This is how the moon would be seen if it were on the observer’s meridian. We can use the drawing above to determine the amount of illumination and whether it is on the left or right hand side of the moon. Use the drawing above to draw the appearance of the moon in the box below.
Identify which instrument was used to obtain the image and outline how the image was produced.
Lunar phase (or Moon phase) refers to the appearance of the illuminated portion of the Moon as seen by an observer, usually on Earth. The lunar phases vary cyclically as the Moon orbits the Earth, according to the changing relative positions of the Earth, Moon, and Sun. One half of the lunar
4) This line is much like a line on a geologic topo map. Explain the similarity.
Everything I tried to identify in our book with the maps that we have there, and I choose the answer more close to the map drawing.
Most songs represent the sun as its protagonist and the moon as antagonistic. In the song "The Moon" the composer ,Andy Beck, sets the moon as the protagonist. Using a different prospective for the moon, Beck uses the moon as a symbol of beauty. The moon becomes a sense of clarity and relaxation to the singer and its listener. Near the end of the song the moon begins to set, while the sun
I) According to my previous observation with the full moon, this observation was less lit up than before. There was a small sliver of darkness that appeared now on the right side of the moon from where I was standing.
Left Panel – Orbit View Practice clicking and dragging in this panel to change the perspective. Change the perspective so that you are looking directly down onto the plane of the Earth’s orbit Click labels. Note that you can see how the direct rays of the sun hit at
| |sun. Every two rounds it run around the sun, it takes the rotation for |