Reply To: map of light pollution trends

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#612523
David Totney
Participant

Interesting. I was under the impression that most LED lights were deliberately designed to project the light more in a downwards direction, in contrast to the older sodium lamps which did allow a lot more light to escape upwards. Maybe this is a factor?

Telescopes: One Newtonian, three Maksutov Cassegrains, seven refractors, and a large SCT.