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Unformatted text preview: Because in 12 hours the only thing that changes on the picture at the top of page 223 is that we spin half way around, we know that through one night, the phase of the moon should not change. In class we looked at a picture all the phases of the moon as it travels around us in 1 month. The Sun was to the right, and the Earth simply turned on its axis. This picture allows us to imagine what time the moon is overhead for any phase, thus helping us estimate rise and set times. Because time of day is determined by where the Sun is in the sky, we can also use this picture to help us figure out how the sky should look if we go outside and look toward the South. It just takes a bit of practice. See slide shows from 4/3 and 4/5 for specific examples....
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This homework help was uploaded on 04/17/2008 for the course PHYS 101 taught by Professor Willoughby during the Spring '08 term at MSU Bozeman.
- Spring '08