Light pollution in Chile

9 cities · estimated Bortle class at each city centre

2 of 9 cities read Bortle 8–9 · 6 of 9 cities read Bortle 7–8 · 1 of 9 cities read Bortle 6–7. The darkest city centre on the list is Puerto Montt (Bortle 6–7).

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Cities, brightest first

#	City	Bortle (est.)	Brightness	2 classes darker
1	Santiago	8–9	255	~25 km ESE
2	Puente Alto	8–9	252	~25 km S
3	Viña del Mar	7–8	255	~25 km W
4	Rancagua	7–8	255	~25 km NW
5	Concepción	7–8	251	~25 km WNW
6	Antofagasta	7–8	246	~25 km WSW
7	Arica	7–8	255	~25 km W
8	Temuco	7–8	242	~25 km N
9	Puerto Montt	6–7	224	~25 km SSE

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.