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Analemma over Hungary

By: Tamas Ladanyi

 

Region: Europe

Site: Veszprem - Hungary

Date: Jan - Dec. 2010

As seen on Astronomy Picture of the Day if you took a picture of the Sun at the same time each day, would it remain in the same position? The answer is no, and the shape traced out by the Sun over the course of a year is called an analemma. The Sun's apparent shift is caused by the Earth's motion around the Sun when combined with the tilt of the Earth's rotation axis. The Sun will appear at its highest point of the analemma during summer and at its lowest during winter. Analemmas created from different latitudes would appear at least slightly different, as well as analemmas created at a different time each day. This particular analemma was built up by 36 separate Sun photos taken during one year (From January to December 2010), all at exactly 10 local time. Pictured in the foreground of this composite image is the photographer's house and neighborhood in Veszprem, Hungary. The foreground image is made without solar filter in October during late afternoon when the sun was on the other side of sky, causing the photographer's shadow on the wall. Tamas Ladanyi/ladanyi.csillagaszat.hu

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