Light Pollution Map

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This tool is so important in showing how humans are changing the planet. All life depends on darkness for circadian rhythms, and this measures how much we need to return to a healthy state for flora and fauna alike.

Screen went solid white. Had to uninstall and reinstall. Now I have the position map, but not base layer - so I cannot tell what locations correspond to the colors.

Every time and day it shows same class even sky is more clear, darker and light pollution free.

I like the app but the most recent data, VIIRS 2023, is only on the website making this app useless as of now. Hopefully it will be added soon.

Jurij: Great app! Certainly a very useful tool for all kinds of things. I found it as someone had linked to it from Reddit. People like to know where to go to stargaze, or see the northern lights. Take care!

On iPad app won’t zoom or pan accurately. Just moves the map however it wants.

I’ve used the web based version for some time but thought I’d try the app. Overall it’s great. Understanding some of the values being listed and what it means for your dark sky experience takes a little leg work. I had to go and actually read part of the paper that goes along with the underlying data set. For me the salient figure would be the ratio listed whenever you click on a point in the map. This ratio is the ratio of the artificial brightness from pollution over the natural brightness of the night sky. Per the paper looking straight up anything 1% or less is about as good as you’re going to get (middle of the ocean would be 0% but 1% is about as good if not looking at the horizon). Haven’t looked at every feature so far but overall app works great but the lag to get stats when you click on a location gets tedious.

Great idea, desktop version may be better. App help text doesn’t fit on screen; map only responds erratically when I try to move location (using two fingers). Possible delay on server end?

I love this app and am optimistic they will update it to be more user-friendly soon. I’d like a user tutorial, and instead of technical labels in the overlay settings, that there were layperson labels. Also on the main map screen there are tools in the top left that have no labels so I don’t know what they do.