Night Light of Basse-Nendaz (Valais) from space (Switzerland) Src. Average luminocity for 10x10km area is 19.7784% and for 50x50km: 5.4097%.
Square area 10x10 km:
 2.13%
 3.27%
 3.27%
 2.56%
 1.99%
 2.56%
 2.41%
 2.7%
 1.85%
 19.89%
 57.39%Square area 50x50 km:
 0.36%
 0.74%
 0.46%
 0.53%
 0.7%
 1.09%
 0.97%
 0.81%
 1.01%
 4.68%
 88.64%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
46° 40' 28.3" North, 6° 36' 32.3" East
46° 11' 23.7" North, 7° 18' 43.5" East
45° 42' 3.7" North, 8° 0' 54.8" East
Some cities around Basse-Nendaz sort by population:
• Sitten
		5.3 km =3.3 mi, 
38°
• Sierre
		20.6 km =12.8 mi, 
56°
• Martigny-Ville
		20.9 km =13 mi, 
242°
• Conthey
		3.8 km =2.4 mi, 
349°
• Bagnes
		13.9 km =8.6 mi, 
211°
• Bex
		24.2 km =15 mi, 
285°
• Fully
		16.2 km =10.1 mi, 
249°
• Savièse
		7.3 km =4.5 mi, 
20°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016