Time-slice photography with Python (and the 2015 solar eclipse)

Time slices spanning three hours of very cloudy eclipse!

Time slices spanning three hours (left-to-right) of a very cloudy solar eclipse!

There was a solar eclipse in March, and all I saw was cloud.  I was prepared for this, of course, what with living in the UK these days.  But all was not lost!  I still got a photograph (indirectly) of the whole thing in the form of this time-slice, which shows a period of about three hours from left to right.  I wrote a Python script to do all the legwork for me, which I’ve put on GitHub should anyone want it. Continue reading

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A History of the British Sky

I have compiled the following time-lapse video, inspired by Ken Murphy’s “A History of the Sky”.  Ken’s time-lapse is actually a mosaic of 360 smaller individual movies, each showing the San Francisco sky throughout a single day.  The result is a brilliant and unique visualisation of an entire year of weather in just a few minutes.

I present Her Majesty’s equivalent, “A History of the British Sky”, recorded from the top of a building near the Welsh border.  I’m sure you’ll agree that the time taken to process over 3 million individual photographs is repaid ten times over in this video.  Such a wealth of information in one view; it’s a feast for the eyes.  You can see the change in the length of the British day, for example. And you can clearly pick out the season of summer.

EDIT: Positive responses to A History of the British Sky:

“I always knew you could get different shades of grey, but never so many different types of grey.” -Gordon

“I can see summer! It’s up in the top-right!” -Tina

“This particular year looks drier than most.” -Margaret

Seriously though, I’d like to thank Ken for his original and actually genuine creation, which, unlike my version, took an awful lot of commitment and skill to pull off.  Such a cool idea!