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A comment on New Zealand's bid to become a dark sky nation. Parent comment

Re:New Zealand's bid to become a dark sky nation by kunai on Friday February 04, 2022 @02:38PM (#30211856)
High pressure sodium is very common and still available. Low pressure sodium is extinct. The last LPS lamp was made in 2018 I believe.

It's a shame, because LPS was the gold standard for astronomy as the hyperspecific emission spectrum made it extremely easy to filter out for astrophotographers and telescope users

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Re:New Zealand's bid to become a dark sky nation by adgjlsfhk1 on Friday February 04, 2022 @05:55PM (#30214627)
it's totally possible to make leds with similar properties, but it's generally but done because narrow spectrum lighting messes with color perception
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