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APOD: Solstice to Equinox Cubed (2016 Mar 26)
Posted: Sat Mar 26, 2016 4:14 am
by APOD Robot
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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Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)
Posted: Sat Mar 26, 2016 4:24 am
by Boomer12k
Interesting... but aim a little higher next time...
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Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)
Posted: Sat Mar 26, 2016 9:24 am
by Astronymus
Always fascinating.
Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)
Posted: Sat Mar 26, 2016 9:33 am
by JohnD
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
Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)
Posted: Sat Mar 26, 2016 4:00 pm
by neufer
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:
Re: APOD: Solstice to Equinox Cubed (2016 Mar 26)
Posted: Sat Mar 26, 2016 10:20 pm
by Maciej Zapior
More examples of solargraphy:
http://analemma.pl
Far edge of solargraphy:
http://analemma.pl/mac
