Night Light of Bucaramanga (Santander) from space (Colombia) Src. Average luminocity for 10x10km area is 71.5541% and for 50x50km: 9.3606%.
Square area 10x10 km:
 27.49%
 27.49% 21.86%
 21.86% 0.87%
 0.87% 6.28%
 6.28% 6.93%
 6.93% 9.96%
 9.96% 2.6%
 2.6% 7.79%
 7.79% 12.12%
 12.12% 4.11%
 4.11% 0%
 0%Square area 50x50 km:
 1.95%
 1.95% 1.84%
 1.84% 0.42%
 0.42% 1.43%
 1.43% 0.95%
 0.95% 1.31%
 1.31% 0.4%
 0.4% 1.45%
 1.45% 2.71%
 2.71% 5.68%
 5.68% 81.87%
 81.87%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
7° 49' 21.1" North, 73° 49' 22.5" West
7° 7' 31.4" North, 73° 7' 11.3" West
6° 25' 37.8" North, 72° 25' 0" West
Some cities around Bucaramanga sort by population:
• Floridablanca
		7.9 km =4.9 mi,  152°
152°
• Girón
		8.4 km =5.2 mi,  220°
220°
• Piedecuesta
		17.1 km =10.6 mi,  153°
153°
• Sabana de Torres
		50.9 km =31.6 mi,  305°
305°
• San Vicente de Chucurí
		42 km =26.1 mi,  229°
229°
• Lebrija
		10.9 km =6.8 mi,  262°
262°
• Zapatoca
		38.1 km =23.7 mi,  205°
205°
• El Playón
		39.5 km =24.5 mi,  346°
346°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016