Lunar Phase Simulator Case Study

2007 Words 9 Pages
Register to read the introduction… ____________
If the moon is full today, what phase do you expect it to be at in a week? _____________
How about one month later? _____________
Many words in astronomy also non-astronomical uses as well. Using your knowledge of how the terms on the left are used in astronomy match them with the nonastronomical uses on the right. waning convex, rounded -- also hunch-backed, having a hump gibbous to increase in size, quantity, volume, intensity, etc. waxing decrease in magnitude, importance, brilliancy, intensity, etc.
NAAP – Lunar Phase Simulator 2/11
The following sketches of the moon's appearance were made over about four weeks. Identify the phases and put them in the correct numerical order. One is labeled for you.
Picture Order Phase Picture Order Phase
A D
B 1 waning gibbous E
C F

Page 2 – Introduction to Moon Phases
From the perspective of an observer above the North Pole, the moon moves clockwise / counter-clockwise (circle) in its orbit around the earth.
In the diagram below the sun's light is coming in from the right. The
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Please load the Moon Phases and the Horizon
Diagram Simulator. Follow the guidelines below to gain familiarity with the simulator.
Please begin by unchecking all options.
• Click the option entitled show ecliptic band. Since the ecliptic can be as much as
23.5º away from the celestial equator and the plane of the moon’s orbit is inclined almost 6 degrees to the plane of the ecliptic – the moon can be located in a band almost 60º wide in the sky. We assume for this lab that the moon is always located on the celestial equator. Unclick show ecliptic band.
• For simplicity’s sake we identify 8 distinct locations for the sun corresponding to 8 distinct times. Click show sun and use the slider to manipulate the sun’s position.
Place the sun at the appropriate location for each of the following times: 6 am, 9

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