Light pollution in Thailand

3 cities · estimated Bortle class at each city centre

3 of 3 cities read Bortle 8–9. The darkest city centre on the list is Chon Buri (Bortle 8–9).

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Cities, brightest first

#	City	Bortle (est.)	Brightness	2 classes darker
1	Bangkok	8–9	255	~50 km S
2	Samut Prakan	8–9	255	~25 km S
3	Chon Buri	8–9	244	~25 km WSW

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.