Starship Asterisk*

The Longer Days

Explanation: This persistent six month long exposure compresses the time from solstice to solstice (December 21, 2018 to June 16, 2019) into a single point of view. Dubbed a solargraph, the unconventional picture was recorded with a tall, tube-shaped pinhole camera using a piece of photographic paper. Fixed to a single spot at Casarano, Italy for the entire exposure, the simple camera continuously records the Sun's daily path as a glowing trail burned into the photosensitive paper. Breaks and gaps in the trails are caused by cloud cover. At the end of the exposure, the paper was scanned to create the digital image. Of course, starting in December the Sun trails peak lower in the sky, near the northern hemisphere's winter solstice. The trails trails climb higher as the days grow longer and the June 21st summer solstice approaches.

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Just wondering why for about a week there the sun turned green.

Newer wrote: ↑Thu Jun 27, 2019 6:25 am Just wondering why for about a week there the sun turned green.

I wondered that too... maybe mild clouds, but not dense? Or maybe air pollution, or something in the air... like pollen? Just my guesses...probably wrong...

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These solstice to solstice pictures are always interesting!

Boomer12k wrote: ↑Thu Jun 27, 2019 6:58 am

Newer wrote: ↑Thu Jun 27, 2019 6:25 am
Just wondering why for about a week there the sun turned green.

I wondered that too... maybe mild clouds, but not dense?
Or maybe air pollution, or something in the air... like pollen?

I just want to say two words to you: Olive Oil
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https://en.wikipedia.org/wiki/Casarano

<<Casarano is a town & sixth most populous comune in the Italian province of Lecce, in the Apulia region of South-East Italy. The town's economy is mostly agriculture-based, with olive oil being the main product.>>
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Newer wrote: ↑Thu Jun 27, 2019 6:25 am Just wondering why for about a week there the sun turned green.

Keep in mind that these images are made using black-and-white photo paper, and they are digitally inverted (because the solar tracks on the film are nearly black). The colors are the result of various physical and chemical changes that occur with brightness and exposure to the elements.

Newer wrote: ↑Thu Jun 27, 2019 6:25 am Just wondering why for about a week there the sun turned green.

"It's made of people!"

https://m.media-amazon.com/images/M/MV5 ... 00_AL_.jpg

What i wonder is how the paper keeps from being horribly over-exposed and being completely white (or black, as it applies), given the constant exposure time?

tomatoherd wrote: ↑Thu Jun 27, 2019 2:32 pm What i wonder is how the paper keeps from being horribly over-exposed and being completely white (or black, as it applies), given the constant exposure time?

Where the Sun is it is highly overexposed. But this film is never developed. We're looking at the direct effects of the light on the emulsion and paper. If you tried to develop the paper, it would be solid black.