Night Light of El Astillero (Cantabria) from space (Spain) Src. Average luminocity for 10x10km area is 54.2778% and for 50x50km: 15.0421%.
Square area 10x10 km:
 7.3%
 9.05%
 7.78%
 7.14%
 13.65%
 10%
 6.98%
 7.78%
 19.52%
 10.79%
 0%Square area 50x50 km:
 1.47%
 2%
 1.56%
 1.47%
 2.94%
 3.61%
 2.06%
 2.74%
 5.37%
 9.46%
 67.33%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 54' 34.7" North, 4° 31' 25.1" West
43° 24' 3.4" North, 3° 49' 13.8" West
42° 53' 16.5" North, 3° 7' 2.6" West
Some cities around El Astillero sort by population:
• Santander
		7.2 km =4.5 mi, 
10°
• Torrelavega
		19.2 km =11.9 mi, 
252°
• Camargo
		5.3 km =3.3 mi, 
277°
• Los Corrales de Buelna
		25.5 km =15.8 mi, 
233°
• Santa Cruz de Bezana
		8.2 km =5.1 mi, 
305°
• Reocín
		23.2 km =14.4 mi, 
252°
• Suances
		18.4 km =11.4 mi, 
281°
• Santa María de Cayón
		10.4 km =6.5 mi, 
187°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016