For the 4th year in a row, my all-sky camera has been taking an image of the sky above the Netherlands every 15 seconds. Combining these images reveal the length of the night changing throughout the year, the passage of clouds and the motion of the Moon and the Sun through the sky. #astrophotography
@cgbassa have you written about the process of how you made this? It's *exactly* what was in my head when I built my skycam but the processing power to compile the 300k+ pictures was a pain
@coldclimate @cgbassa was wondering the same, it's such a cool data visualisation exercise!