Night Light of Getxo (Basque Country) from space (Spain) Src. Average luminocity for 10x10km area is 66.7714% and for 50x50km: 18.1537%.
Square area 10x10 km:
 20.79%
 18.89%
 4.29%
 6.67%
 6.98%
 8.41%
 6.19%
 8.89%
 12.38%
 6.51%
 0%Square area 50x50 km:
 3.13%
 3.59%
 1.64%
 1.81%
 2.16%
 2.65%
 2.06%
 2.7%
 5.43%
 12.58%
 62.26%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 51' 57.5" North, 3° 42' 52.5" West
43° 21' 24.8" North, 3° 0' 41.3" West
42° 50' 36.6" North, 2° 18' 30" West
Some cities around Getxo sort by population:
• Algorta
		0.9 km =0.6 mi, 
168°
• Portugalete
		4.1 km =2.5 mi, 
190°
• Santurtzi
		3.6 km =2.2 mi, 
208°
• Leioa
		3.8 km =2.4 mi, 
151°
• Sestao
		5.3 km =3.3 mi, 
176°
• Sopela
		3.4 km =2.1 mi, 
43°
• Zierbena
		5.9 km =3.7 mi, 
262°
• Berango
		1.5 km =0.9 mi, 
54°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016