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This is the most expensive photograph in the world...



http://upload.wikimedia.org/wikipedi...a/Rhein_II.jpg

It's called "Rhein II", and is a simple (in fact quite drab) photograph of the mighty German river Rhine.

It looks quite clean considering there are no people or buildings in the photo, but the artist "cheated" ...

I originally planned to share this brief observation/analysis among fellow amateur astronomers, specifically those who from time to time, let the general public have glimpse into a telescope's eyepiece and view celestial objects in the night sky. But I realized that this tidbit of information could be useful for the general public as well, so here it goes.

Oftentimes when I'm involved in a public astronomy event, which includes telescope viewing, the fact that you're standing beside ...