17 Apr '11, 2pm

Star Trails: Secret Paintings of the Night Sky #astronomy #space #photography

Star Trails: Secret Paintings of the Night Sky #astronomy #space #photography

“What most people don't understand about light is that the human eye doesn't discern between the chemical compounds that make up light. Humans view a very narrow spectrum. Cameras, on the other hand, can pick up light wavelengths that is composed of chemical compounds like helium, hydrogen, and so on. These chemicals change the "color" of light that that we can't easily see, but cameras can. … Stars in the sky are different—they are made up of gasses that are comprised of these chemical compounds that emit colors that we can't see, but cameras can. So, the "hues" you may see in photos of stars may appear vivid, but that does not mean it's been artificially altered.”

Full article: http://www.environmentalgraffiti.com/featured/star-trails...

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