[im] the longest-ever photo exposure

[János Sugár]

A photo tracking the sun's cycles over more than eight years -- 
believed to be the longest exposure image ever taken -- has been 
discovered inside a cider can.
The image shows the 2,953 arced trails of the sun as it rose and set 
through nearly a decade of changing seasons.
Photographer Regina Valkenborgh was an fine-art student at the 
University of Hertfordshire in southern England when she decided to 
create a series of makeshift pinhole cameras by lining drink cans 
with photographic paper.
https://edition.cnn.com/style/article/can-eight-year-photo-intl-scli-gbr-scn/index.html