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Saving Dark Skies
In the war against light pollution astronomers have gained important new allies -- and new insights into how we see at night.
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A primer on light-pollution jargon
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How to light your home safely, save energy, and decrease light polluion at the same time.
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You don't have to search to the ends of the Earth to find exterior residential lighting that's dark-sky friendly.
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Here's a selection of manufacturers and suppliers of good lighting equipment.
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Information on good and bad lighting fixtures
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You don't have to fight city hall. To ban bad lights, make city hall your friend.
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Only a tiny fraction of astronomers do anything to help reduce bad outdoor lighting. We need to change that.
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In the last two generations, light pollution has spread from a problem in cities to a major astronomical disruption almost everywhere.
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Excellent? Typical? Urban? Use this nine-step scale to rate the sky conditions at any observing site.
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Bright skies aren't empty skies. See for yourself how many treasures lie hidden in the glow of a city sky.
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One person can make a difference, as demonstrated by a high-school student's single-handed effort to help us all appreciate the night sky.
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