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Praveen Kanagal
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Tutulemma: Solar Eclipse Analemma 
If you went outside at exactly the same time every day and took a picture that included the Sun, how would the Sun's position change? With great planning and effort, such a series of images can be taken. The figure-8 path the Sun follows over the course of a year is called an analemma. 

Analemmas created from different latitudes would appear at least slightly different, as well as analemmas created at a different time each day. With even greater planning and effort, the series can include a total eclipse of the Sun as one of the images.

Pictured is such a total solar eclipse analemma or Tutulemma - a term coined by the photographers based on the Turkish word for eclipse. The bellow composite image sequence was recorded from Turkey starting in 2005. The base image for the sequence is from the total phase of a solar eclipse as viewed from Side, Turkey on 2006 March 29. Venus was also visible during totality, toward the lower right.

Info and photo via APOD
Image Credit & Copyright: Cenk E. Tezel and Tunç Tezel (TWAN)

Read & learn:
http://www.math.nus.edu.sg/aslaksen/projects/tsy.pdf

#universe   #nasa   #analemma   #space   #astrophotography  
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