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This figure-8 path that the sun makes in the sky is called the analemma. On some days you might notice that the sun is not in the sky where, according to the time on your watch, you would expect it to be.
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www.analemma.com/Pages/framesPage.html
www.analemma.com/Pages/framesPage.html
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What is the analemma? With a few simple animations the analemma can be readily understood...
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www.analemma.com/
www.analemma.com/
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The Sun will appear at its highest point in the sky, and highest point in the analemma, during summer. In the winter, the Sun is at its lowest point. The in-between times generate the rest of the analemma pattern.
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solar-center.stanford.edu/art/analemma.html
solar-center.stanford.edu/art/analemma.html
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That is why the Sun moves along the analemma from west to east near the top and bottom of the analemma (around midwinter and midsummer, December and June), and from east to west near the middle of the analemma (around the beginning of spring and autumn, March and September).
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solar-center.stanford.edu/FAQ/Qsunaspattern.html
solar-center.stanford.edu/FAQ/Qsunaspattern.html
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This annual north-south oscillation of the sun's declination angle is responsible for the lengthwise extension of the analemma pattern. ... Set the analemma curve upright, and it becomes a miniature almanac. The vertical coordinate of each point on it gives the sun's declination on a particular day of the year,
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pantherfile.uwm.edu/kahl/www/Images/Weather/Other/anale...
pantherfile.uwm.edu/kahl/www/Images/Weather/Other/analemma.html
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Figure 1.0 Approximate shape of an analemma projected on a horizontal surface. The analemma shows the Sun's annual north-south and east-west migration caused by changes in the Sun's declination (see reference table) and Equation of Time (see reference table) respectively.
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www.wsanford.com/~wsanford/exo/sundials/analemma_calc.h...
www.wsanford.com/~wsanford/exo/sundials/analemma_calc.html
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Some of you may ask, "What is an analemma?" Well, if you photographed the sun once a week at the same time of day for an entire year, you would have a photo of the analemma, the sun's apparent path on the sky over the course of a year, which looks like a figure-eight.
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www.analemma.de/english/analem.html
www.analemma.de/english/analem.html
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A multiple exposure of the sun over the course of an entire day. First, I metered the correct exposure for a single image: 1/60 sec. @ f/22. Then I thought about how often I wanted to have the sun in the picture.
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www.analemma.de/english/sunpath.html
www.analemma.de/english/sunpath.html
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Yahoo! reviewed these sites and found them related to Sun > Analemma ... Analemma; Explaining the mathematics behind the attempt to track the visible path the sun takes throughout the year. www.analemma.com...
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dir.yahoo.com/Science/Astronomy/Solar_System/Sun/Analem...
dir.yahoo.com/Science/Astronomy/Solar_System/Sun/Analemma/
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