It’s a long time I have this video around. It took me 2 days of work (acquisition and processing). At last, I’m making it widely available. That’s mostly for astronomers :-)
Each picture of this movie is a composite of 30s videos (250 pictures), taken every 5min, during two hours, between 00:00 and 02:00 (2001-12-11). Acquisition with an ETX90EC and a Vesta Pro 680K webcam. Image processing with IRIS.