Real-time sunlight - a planet in real time on your desktop

Once upon a time there was something similar for MS Windows, but it was a long time ago and not so beautiful, besides under Windows. Now there is such a thing for Ubuntu that I was extremely pleased. This program displays on your desktop a map of the World (very similar to pictures from space) and sunlight, which is currently illuminating a part of the planet. In essence, this is Quirky Wallpaper with a very user-friendly GUI.


There are four types of expanded cards. I liked the first one the most:


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It is also possible to see the planet in the form of hemispheres:



And even watch the phases of the moon (the image is square, you need to make the desktop background black)



And the last utility - the ability to autorun.
Images are taken from here and updated at regular intervals.
While I was taking screenshots, I was told the most pleasant news - I had a repository for Ubuntu of this desktop decoration. Now for installation it is not necessary to collect it from source codes. For installation:

sudo add-apt-repository ppa:realtime.sunlight.wallpaper/rsw
sudo apt-get update && sudo apt-get install sunlight

Thanks for attention.

UPD.: The speed of the system has almost no effect. It may slightly affect the speed of "tyrnet" at the time of loading a new image.
UPD2 .: I completely forgot. Based on these three articles .