6 cities · estimated Bortle class at each city centre
3 of 6 cities read Bortle 7–8 · 2 of 6 cities read Bortle 6–7 · 1 of 6 cities read Bortle 4–5.
The darkest city centre on the list is Pokhara (Bortle 4–5).
Brightness is the NASA VIIRS Black Marble 2016 value at the city centre on a 0–255 scale; 255 is saturated.
Cities are ordered by estimated sky brightness, which also counts the light within 30 km.