Night Light of Langford (Western Australia) from space (Australia) Src. Average luminocity for 10x10km area is 87.1818% and for 50x50km: 41.6092%.
Square area 10x10 km:
 20.63%
 27.97%
 19.93%
 24.65%
 5.07%
 1.22%
 0.52%
 0%
 0%
 0%
 0%Square area 50x50 km:
 9.3%
 9.98%
 4.72%
 6.04%
 8.09%
 4.88%
 3.54%
 3.57%
 6.74%
 8.48%
 34.64%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
31° 26' 34.7" South, 115° 14' 18.4" East
32° 2' 27.3" South, 115° 56' 29.7" East
32° 38' 6" South, 116° 38' 40.9" East
Some cities around Langford sort by population:
• Canning Vale
		2.9 km =1.8 mi, 
229°
• Thornlie
		2.5 km =1.6 mi, 
149°
• Beckenham
		2.5 km =1.6 mi, 
43°
• Wilson
		3.6 km =2.2 mi, 
308°
• Cannington
		2.8 km =1.7 mi, 
350°
• Parkwood
		2.4 km =1.5 mi, 
247°
• Kenwick
		2.5 km =1.6 mi, 
70°
• East Cannington
		3.7 km =2.3 mi, 
20°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016