by APOD Robot » Sat Mar 26, 2016 4:14 am
Solstice to Equinox Cubed
Explanation: This 3 month long exposure packed the days from December 22, 2015 through March 20 into a box.
Dubbed a solargraph, the unconventional, unfolded picture was recorded with a pinhole camera made from a cube-shaped container, its sides lined with photographic paper. Fixed to a single spot for the entire exposure, the
simple camera recorded the Sun's path through Hungarian skies.
Each day a glowing trail was burned into the photosensitive paper. From short and low, to long and high, the trails follow the progression from
winter solstice to
spring equinox. Of course, dark gaps in the daily sun trails are caused by cloud cover.
Sunny days produce the more continuous bright tracks.
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[url=http://apod.nasa.gov/apod/ap160326.html][img]http://apod.nasa.gov/apod/calendar/S_160326.jpg[/img] [size=150]Solstice to Equinox Cubed[/size][/url]
[b] Explanation: [/b] [url=https://www.flickr.com/photos/57536604@N06/25966090215/in/photostream/]This 3 month long exposure[/url] packed the days from December 22, 2015 through March 20 into a box. [url=https://www.flickr.com/groups/solargraphy/]Dubbed a solargraph[/url], the unconventional, unfolded picture was recorded with a pinhole camera made from a cube-shaped container, its sides lined with photographic paper. Fixed to a single spot for the entire exposure, the [url=http://www.pinholephotography.org/Solargraph%20instructions%202.htm]simple camera[/url] recorded the Sun's path through Hungarian skies. [url=http://apod.nasa.gov/apod/ap151222.html]Each day[/url] a glowing trail was burned into the photosensitive paper. From short and low, to long and high, the trails follow the progression from [url=http://apod.nasa.gov/apod/ap151231.html]winter solstice[/url] to [url=http://apod.nasa.gov/apod/ap160320.html]spring equinox[/url]. Of course, dark gaps in the daily sun trails are caused by cloud cover. [url=http://www.nasa.gov/sun]Sunny days[/url] produce the more continuous bright tracks.
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