Night Light of Heiden (North Rhine-Westphalia) from space (Germany) Src. Average luminocity for 10x10km area is 4.8613% and for 50x50km: 8.6361%.
Square area 10x10 km:
 0.28%
 0.84%
 0%
 0.14%
 1.26%
 1.96%
 1.68%
 0%
 0%
 0%
 93.84%Square area 50x50 km:
 0.73%
 1.07%
 0.56%
 1.08%
 1.35%
 1.63%
 1.46%
 1.18%
 2.75%
 6.52%
 81.69%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
52° 15' 56.6" North, 6° 13' 48.8" East
51° 49' 60" North, 6° 55' 60" East
51° 23' 48.2" North, 7° 38' 11.3" East
Some cities around Heiden sort by population:
• Borken
		5.3 km =3.3 mi, 
282°
• Rhede
		16.3 km =10.1 mi, 
270°
• Gescher
		14.3 km =8.9 mi, 
20°
• Klein Reken
		9.2 km =5.7 mi, 
124°
• Schermbeck
		17.3 km =10.7 mi, 
195°
• Velen
		7.8 km =4.8 mi, 
28°
• Raesfeld
		9.4 km =5.8 mi, 
217°
• Südlohn
		12 km =7.5 mi, 
337°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016