Night Light of Zelhem (Gelderland) from space (Netherlands) Src. Average luminocity for 10x10km area is 11.25% and for 50x50km: 9.9404%.
Square area 10x10 km:
 1.39%
 1.64%
 1.52%
 1.01%
 1.77%
 1.89%
 1.64%
 0.38%
 0.51%
 11.62%
 76.64%Square area 50x50 km:
 0.81%
 1.37%
 0.92%
 1.05%
 1.56%
 1.73%
 1.3%
 0.76%
 1.49%
 9.84%
 79.17%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
52° 26' 14.6" North, 5° 38' 43.8" East
52° 0' 24" North, 6° 20' 55" East
51° 34' 18.3" North, 7° 3' 6.3" East
Some cities around Zelhem sort by population:
• Doetinchem
		6.2 km =3.9 mi, 
221°
• Brummen
		16.1 km =10 mi, 
305°
• Lichtenvoorde
		15.1 km =9.4 mi, 
98°
• Wisch
		10.1 km =6.3 mi, 
152°
• Doesburg
		14.4 km =8.9 mi, 
272°
• Leesten
		15.7 km =9.8 mi, 
329°
• Ruurlo
		11.4 km =7.1 mi, 
37°
• Varsseveld
		10.3 km =6.4 mi, 
133°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016