This is extremely cool.
Rising and falling of the sun "at an effective 'shutter speed' of eight years - taken using a pinhole camera made from a drinks can and a sheet of photographic paper - may be the most extreme example of its type." via @NatGeo https://www.nationalgeographic.co.uk/photography/2020/12/longest-known-exposure-taken-by-makeshift-camera-forgotten-inside-uk-telescope




