Night Light of Segovia (Castille and León) from space (Spain) Src. Average luminocity for 10x10km area is 40.4745% and for 50x50km: 5.4653%.
Square area 10x10 km:
 6.46%
 8.5%
 5.27%
 4.93%
 7.48%
 2.55%
 2.21%
 3.74%
 13.1%
 38.27%
 7.48%Square area 50x50 km:
 0.28%
 0.78%
 0.53%
 0.71%
 0.75%
 0.77%
 0.77%
 1.04%
 1.21%
 4.8%
 88.34%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
41° 28' 37.3" North, 4° 49' 17.5" West
40° 56' 53.1" North, 4° 7' 6.2" West
40° 24' 53.5" North, 3° 24' 55" West
Some cities around Segovia sort by population:
• Guadarrama
		30.7 km =19.1 mi, 
175°
• Alpedrete
		33.1 km =20.6 mi, 
166°
• Moralzarzal
		32.5 km =20.2 mi, 
157°
• Cercedilla
		23.6 km =14.7 mi, 
167°
• Manzanares el Real
		32.7 km =20.3 mi, 
138°
• Collado Mediano
		29.5 km =18.3 mi, 
164°
• San Ildefonso
		10.7 km =6.6 mi, 
118°
• Boalo
		30.9 km =19.2 mi, 
146°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016