Thousands of people around the world are studying how city light pollution is robbing us of a view of the starry sky. The Globe at Night program and the International Dark Sky Association coordinate these world-wide observing sessions either by having you use star maps and figuring out the faintest star visible, or using a specially-designed light meter to measure the sky’s brightness. A third way is to photograph the sky and use the image data to calculate a sky brightness. Here’s how to participate in this research and take some spectacular photos of the starry night sky … while it lasts! Pick-up your smartphone and follow the steps to become a citizen scientist!
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