Night Light of Prieska (Northern Cape) from space (South Africa) Src. Average luminocity for 10x10km area is 9.7897% and for 50x50km: 0.4238%.
Square area 10x10 km:
 2.18%
 1.98%
 0.6%
 0%
 1.59%
 0%
 2.98%
 0.99%
 1.59%
 1.98%
 86.11%Square area 50x50 km:
 0.08%
 0.08%
 0.02%
 0.03%
 0.06%
 0%
 0.14%
 0.04%
 0.06%
 0.08%
 99.41%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
29° 3' 18.8" South, 22° 2' 21.8" East
29° 40' 4.9" South, 22° 44' 33" East
30° 16' 37.6" South, 23° 26' 44.3" East
Some cities around Prieska sort by population:
• Upington
		198.2 km =123.2 mi, 
313°
• De Aar
		163.8 km =101.8 mi, 
131°
• Postmasburg
		151.6 km =94.2 mi, 
11°
• Barkly West
		213.8 km =132.8 mi, 
53°
• DaniĆ«lskuil
		181.9 km =113 mi, 
25°
• Ritchie
		193.4 km =120.2 mi, 
68°
• Kathu
		221.3 km =137.5 mi, 
7°
• Carnarvon
		156 km =96.9 mi, 
202°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016