Night Light of Igaci (Alagoas) from space (Brazil) Src. Average luminocity for 10x10km area is 27.1797% and for 50x50km: 17.7368%.
Square area 10x10 km:
 1.52%
 1.95%
 0.87%
 2.6%
 2.81%
 7.14%
 10.17%
 4.11%
 8.66%
 48.27%
 11.9%Square area 50x50 km:
 1.1%
 2.35%
 1.07%
 1.79%
 2.18%
 4.18%
 4.48%
 4.01%
 6%
 16.42%
 56.42%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
8° 50' 34.2" South, 37° 20' 12.3" West
9° 32' 13" South, 36° 38' 1" West
10° 13' 46.7" South, 35° 55' 49.8" West
Some cities around Igaci sort by population:
• Arapiraca
		24.2 km =15 mi, 
187°
• Cajueiro
		28.4 km =17.6 mi, 
134°
• Lagoa da Canoa
		34.5 km =21.4 mi, 
199°
• Maribondo
		36.3 km =22.6 mi, 
97°
• Anadia
		39.7 km =24.7 mi, 
114°
• Major Isidoro
		38.5 km =23.9 mi, 
270°
• Quebrangulo
		30.1 km =18.7 mi, 
36°
• Taquarana
		19.2 km =11.9 mi, 
128°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016