Night Light of São Miguel do Tapuio (Piauí) from space (Brazil) Src. Average luminocity for 10x10km area is 6.5496% and for 50x50km: 0.3539%.
Square area 10x10 km:
 1.03%
 1.45%
 0.62%
 0.21%
 0.21%
 2.27%
 0.62%
 1.03%
 1.65%
 0%
 90.91%Square area 50x50 km:
 0.04%
 0.06%
 0.03%
 0.05%
 0.03%
 0.09%
 0.03%
 0.08%
 0.07%
 0%
 99.52%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
4° 48' 12" South, 42° 1' 35.3" West
5° 30' 13" South, 41° 19' 24" West
6° 12' 11" South, 40° 37' 12.8" West
Some cities around São Miguel do Tapuio sort by population:
• Crateús
		80.1 km =49.8 mi, 
63°
• Várzea Alegre
		105.4 km =65.5 mi, 
80°
• Valença do Piauí
		110.8 km =68.8 mi, 
204°
• Parambu
		105 km =65.2 mi, 
138°
• Novo Oriente
		60.9 km =37.8 mi, 
93°
• Independência
		112.9 km =70.2 mi, 
83°
• Castelo do Piauí
		32.4 km =20.1 mi, 
308°
• Beneditinos
		115.6 km =71.8 mi, 
272°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016