An Image which is More Beautiful, the Better You Understand It.

I wanted to share the above image, already described in great detail in An Entire Day Represented in One Panoramic Photo. This is an amazing image, and beautiful, but I think it's a great example of an image which is even more amazing and beautiful when you understand what it shows. From an astronomical point of view the main features are the path of the Sun across the daytime sky, and the circular star trails around the North Celestial Pole in the night time sky.

An annotated version is below.

For more beautiful photos of the night sky over Greece visit the photographer Chris Kotsiopoulos's website.