Night Light of Brilon (North Rhine-Westphalia) from space (Germany) Src. Average luminocity for 10x10km area is 5.8739% and for 50x50km: 1.3389%.
Square area 10x10 km:
 0.98%
 0.7%
 0.56%
 0.84%
 1.4%
 1.68%
 0.42%
 0.14%
 0%
 0%
 93.28%Square area 50x50 km:
 0.12%
 0.2%
 0.03%
 0.16%
 0.25%
 0.32%
 0.35%
 0.26%
 0.11%
 0.12%
 98.08%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
51° 49' 52.5" North, 7° 52' 6" East
51° 23' 40.6" North, 8° 34' 17.3" East
50° 57' 13.7" North, 9° 16' 28.5" East
Some cities around Brilon sort by population:
• Meschede
		20.6 km =12.8 mi, 
256°
• Warstein
		16.4 km =10.2 mi, 
289°
• Büren
		17.4 km =10.8 mi, 
357°
• Olsberg
		7.1 km =4.4 mi, 
233°
• Wünnenberg
		16.5 km =10.3 mi, 
32°
• Bestwig
		12.4 km =7.7 mi, 
252°
• Rüthen
		14.2 km =8.8 mi, 
318°
• Willingen
		11.5 km =7.1 mi, 
166°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016