One year on Mt Wendelstein – 11

–part 11 of the essay One year on Mt. Wendelstein–

Ever imagined how the sky on an extrasolar planet could look like? On Earth, the sky is blue mostly due to Ozone with rayleigh scattering, which is still often taught at school as an explanation, playing only second fiddle. Other gasses therefore would color the sky differently, which is also what happens when you photograph with this filter.