Happy new year! Another year means another year-long keogram! Every 15 seconds throughout 2022, my trusty all-sky camera took a picture of the sky above the Netherlands. Combining these 2.1 million images into a year-long keogram reveals this picture, which shows the length of the night change throughout the year (the hourglass shape), when the Moon was visible at night (diagonal bands), and the Sun higher in the sky during summer, as well as lots and lots of clouds passing overhead.

@cgbassa Nice!
I was playing around with a similar idea in 2017, but only using a single pixel sensor to grab the average colour of the sky.

I need to revisit this, my set-up wasn't as weather proof as I thought it was, so only got ~8 months of data.

@Dtl @cgbassa absolutely love the diy aesthetic of this
I also played around with arduino and light sensors but also involving images

https://www.alexpiacentini.com/labs/exposed-bits

Bits and photons — Alex Piacentini

A machine that exposes digital images to the deteriorating effects of the physical world

Bits and photons — Alex Piacentini
@piaaaac @cgbassa I like it. There's an artist, Katie Paterson who did similar with music by reflecting it off the moon.
https://katiepaterson.org/artwork/earth-moon-earth-moonlight/
Earth-Moon-Earth (Moonlight Sonata Reflected from the Surface of the Moon) | Katie Paterson