Comment on The loss of dark skies is so painful, astronomers coined a new term for it
carbrewr84@kbin.social 1 year agoIt's technically not orange light bulbs they have to use, it's a specific lamp style called 'low pressure sodium'
Here's an article that explains the reasoning behind Hawaii's lighting sources and the regulations:
https://www.accessfixtures.com/hawaii-lighting-ordinances-dark-sky-regulations/
Zak@lemmy.world 1 year ago
That site is claiming that phosphor-converted amber LEDs provide all the benefits of low-pressure sodium. They do not; one of the benefits of LPS is that astronomers have a very narrow frequency band to filter out, while PC amber is much wider. Monochromatic amber LEDs are more comparable to LPS.