Every dark sky we can still measure.

The driest air on the planet, and the sky that comes with it.

SQM

21.98

Clear nights

317

Elevation

2,680 m

Dunes to the horizon and nothing electric for 200 km.

SQM

21.94

Clear nights

300

Elevation

1,180 m

Two people per square kilometre. No light domes anywhere.

SQM

21.90

Clear nights

266

Elevation

1,590 m

A whole basin legislated dark since 1981.

SQM

21.85

Clear nights

235

Elevation

1,030 m

Cold desert at 4,500 m with almost no atmosphere in the way.

SQM

21.81

Clear nights

276

Elevation

4,500 m

Above the inversion layer, on top of the clouds.

SQM

21.76

Clear nights

271

Elevation

2,396 m

Ten thousand square kilometres of mirror.

SQM

21.72

Clear nights

268

Elevation

3,660 m

The darkest measured sky in the lower 48.

SQM

21.70

Clear nights

268

Elevation

1,140 m

A hole in the weather, right under the auroral oval.

SQM

21.60

Clear nights

201

Elevation

385 m

Atlantic dark, when the Atlantic allows it.

SQM

21.55

Clear nights

135

Elevation

120 m

Sandstone monoliths as your foreground.

SQM

21.50

Clear nights

297

Elevation

1,000 m

Sleep at 2,877 m, at the top of a cable car.

SQM

21.40

Clear nights

208

Elevation

2,877 m