APOD: Solstice to Equinox Cubed (2016 Mar 26)

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APOD Robot
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APOD: Solstice to Equinox Cubed (2016 Mar 26)

Post by APOD Robot » Sat Mar 26, 2016 4:14 am

Image 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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Boomer12k
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Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)

Post by Boomer12k » Sat Mar 26, 2016 4:24 am

Interesting... but aim a little higher next time...

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Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)

Post by Astronymus » Sat Mar 26, 2016 9:24 am

Always fascinating.
»Only a dead Earth is a good Earth.«

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JohnD
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Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)

Post by JohnD » Sat Mar 26, 2016 9:33 am

Well, zap me! The weather in Hungary between December and March is lot sunnier than it is in the UK!
You would be lucky to get a dozen suntrails on your picture here.

JOhn

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Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)

Post by neufer » Sat Mar 26, 2016 4:00 pm

JohnD wrote:
The weather in Hungary between December and March is lot sunnier than it is in the UK!
You would be lucky to get a dozen suntrails on your picture here.
  • It helps to be in the lee of the Dinaric Alps:



Art Neuendorffer

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Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)

Post by Maciej Zapior » Sat Mar 26, 2016 10:20 pm

More examples of solargraphy:
http://analemma.pl

Far edge of solargraphy:
http://analemma.pl/mac