- dotTech - http://dottech.org -

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:

[1]

[via NASA [2] | Image credit: Robert Polzl]


Article printed from dotTech: http://dottech.org

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:

[1] Image: http://dottech.org/wp-content/uploads/2012/09/analemma_over_austria.jpg

[2] NASA: http://apod.nasa.gov/apod/ap120922.html

© 2008-2012 dotTech.org | All content is the property of its rightful owner.