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The Sun does a figure-eight in the sky over Austria [Amazing Photo of the Day]
Posted By Ashraf On September 28, 2012 @ 2:30 AM In Miscellaneous | 4 Comments
In astronomy, an “analemma” is, according to Wikipedia, ” a curve representing the changing angular offset of a celestial body (usually the Sun) from its mean position on the celestial sphere as viewed from another celestial body (usually the Earth)”. In more simple terms, an analemma is a figure-eight like shape that is created by the movement of the Sun in the sky over a certain time period. Today I have a photo to show you of just that.
The following image is a compilation of photographs taken at the same location in Austria and at the same time of the day everyday for almost a year (from September 29, 2011 through September 9, 2012); the different positions of the Sun throughout the year create an analemma. Check it out:
[via NASA  | Image credit: Robert Polzl]
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URL to article: http://dottech.org/82745/the-sun-does-a-figure-eight-in-the-sky-over-austria-amazing-photo-of-the-day/
URLs in this post:
 Image: http://cdn.dottech.org/media/2012/09/analemma_over_austria.jpg
 NASA: http://apod.nasa.gov/apod/ap120922.html
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