Spearfish night lights from space

Night Light of Spearfish (South Dakota) from space (United States) Src. Average luminocity for 10x10km area is 22.7413% and for 50x50km: 2.2683%.

2016

Analysis of Spearfish night lights 2016

Square area 10x10 km:

100 3.33%
90-99 3.97%
80-89 1.59%
70-79 3.49%
60-69 5.71%
50-59 1.43%
40-49 2.38%
30-39 1.59%
20-29 0.48%
10-19 21.43%
0-9 54.6%

Square area 50x50 km:

100 0.22%
90-99 0.37%
80-89 0.24%
70-79 0.31%
60-69 0.4%
50-59 0.23%
40-49 0.2%
30-39 0.21%
20-29 0.28%
10-19 1.04%
0-9 96.51%

Clear (daylight) street map image can be seen on geolist.org.

Map coordinates:

44° 59' 24.9" North, 104° 33' 45" West

44° 29' 27" North, 103° 51' 33.7" West

43° 59' 13.5" North, 103° 9' 22.5" West

Distances WxH: 111.5×111.5 km


Some cities around Spearfish sort by population:
Rapid City 67.7 km =42.1 mi, 132°
Gillette 132.4 km =82.3 mi, 260°
Box Elder 75.7 km =47 mi, 123°
Rapid Valley 74.1 km =46 mi, 129°
Sturgis 29.2 km =18.1 mi, 107°
Douglas 228.2 km =141.8 mi, 212°
Chadron 197.2 km =122.5 mi, 159°
Belle Fourche 20.1 km =12.5 mi,

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Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016