Night Light of Niederkassel (North Rhine-Westphalia) from space (Germany) Src. Average luminocity for 10x10km area is 47.1947% and for 50x50km: 28.6887%.
Square area 10x10 km:
 7.98%
 7.98% 7%
 7% 3.64%
 3.64% 1.68%
 1.68% 5.74%
 5.74% 7.98%
 7.98% 11.2%
 11.2% 16.25%
 16.25% 37.39%
 37.39% 1.12%
 1.12% 0%
 0%Square area 50x50 km:
 5.41%
 5.41% 5.97%
 5.97% 2.85%
 2.85% 2.73%
 2.73% 4.12%
 4.12% 3.74%
 3.74% 3.79%
 3.79% 5.33%
 5.33% 7.5%
 7.5% 13.15%
 13.15% 45.41%
 45.41%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
51° 15' 25.8" North, 6° 20' 4.7" East
50° 48' 54.1" North, 7° 2' 16" East
50° 22' 7.2" North, 7° 44' 27.2" East
Some cities around Niederkassel sort by population:
• Troisdorf
		7.9 km =4.9 mi,  94°
94°
• Bornheim
		6.6 km =4.1 mi,  209°
209°
• Brühl
		9.5 km =5.9 mi,  279°
279°
• Wesseling
		4.6 km =2.9 mi,  286°
286°
• Alfter
		9.2 km =5.7 mi,  189°
189°
• Porz am Rhein
		8.1 km =5 mi,  10°
10°
• Eil
		9.2 km =5.7 mi,  18°
18°
• Wahn-Heide
		6.9 km =4.3 mi,  44°
44°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016