Night Light of Sestao (Basque Country) from space (Spain) Src. Average luminocity for 10x10km area is 80.3924% and for 50x50km: 18.7716%.
Square area 10x10 km:
 30.61%
 27.58%
 4.7%
 4.39%
 8.48%
 7.42%
 5.61%
 6.52%
 4.55%
 0.15%
 0%Square area 50x50 km:
 3.11%
 3.61%
 1.77%
 1.85%
 2.34%
 2.7%
 2.15%
 2.77%
 5.55%
 12.88%
 61.27%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 49' 9.2" North, 3° 42' 37" West
43° 18' 35.1" North, 3° 0' 25.8" West
42° 47' 45.5" North, 2° 18' 14.5" West
Some cities around Sestao sort by population:
• Barakaldo
		2.1 km =1.3 mi, 
133°
• Algorta
		4.4 km =2.7 mi, 
357°
• Getxo
		5.3 km =3.3 mi, 
356°
• Portugalete
		1.7 km =1.1 mi, 
318°
• Santurtzi
		2.9 km =1.8 mi, 
315°
• Leioa
		2.4 km =1.5 mi, 
37°
• Erandio
		2.8 km =1.7 mi, 
102°
• Ortuella
		4 km =2.5 mi, 
272°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016