Night Light of Velsen-Zuid (North Holland) from space (Netherlands) Src. Average luminocity for 10x10km area is 62.0934% and for 50x50km: 30.7523%.
Square area 10x10 km:
 18.18%
 18.18% 18.56%
 18.56% 4.29%
 4.29% 4.67%
 4.67% 3.79%
 3.79% 5.81%
 5.81% 4.42%
 4.42% 12.88%
 12.88% 25.88%
 25.88% 1.52%
 1.52% 0%
 0%Square area 50x50 km:
 9.21%
 9.21% 7.79%
 7.79% 2.27%
 2.27% 2.44%
 2.44% 3.02%
 3.02% 2.76%
 2.76% 3.02%
 3.02% 4.2%
 4.2% 7.74%
 7.74% 10.81%
 10.81% 46.74%
 46.74%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
52° 53' 10.8" North, 3° 56' 48.8" East
52° 27' 36" North, 4° 39' 0" East
52° 1' 46.2" North, 5° 21' 11.3" East
Some cities around Velsen-Zuid sort by population:
• Haarlem
		8.8 km =5.5 mi,  185°
185°
• Zaanstad
		11.1 km =6.9 mi,  93°
93°
• Zaandam
		12.2 km =7.6 mi,  101°
101°
• Beverwijk
		2.6 km =1.6 mi,  10°
10°
• Heemskerk
		5.9 km =3.7 mi,  14°
14°
• Castricum
		9.9 km =6.2 mi,  7°
7°
• Uitgeest
		8.7 km =5.4 mi,  27°
27°
• Zaandijk
		10.8 km =6.7 mi,  81°
81°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016