Night Light of Ribeirão (Pernambuco) from space (Brazil) Src. Average luminocity for 10x10km area is 12.7273% and for 50x50km: 4.2575%.
Square area 10x10 km:
 0%
 0.62%
 4.13%
 1.45%
 0.83%
 2.27%
 1.03%
 3.72%
 2.07%
 2.07%
 81.82%Square area 50x50 km:
 0.12%
 0.52%
 0.8%
 0.4%
 0.82%
 0.6%
 0.61%
 0.61%
 0.77%
 2.06%
 92.7%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
7° 49' 6.4" South, 36° 4' 51.3" West
8° 30' 52" South, 35° 22' 40" West
9° 12' 33" South, 34° 40' 28.8" West
Some cities around Ribeirão sort by population:
• Escada
		24.2 km =15 mi, 
44°
• Palmares
		30.1 km =18.7 mi, 
231°
• Sirinhaém
		30 km =18.6 mi, 
106°
• Gameleira
		7.8 km =4.8 mi, 
187°
• Amaraji
		16.8 km =10.4 mi, 
330°
• Água Preta
		27.3 km =17 mi, 
218°
• Rio Formoso
		29.2 km =18.1 mi, 
125°
• Joaquim Nabuco
		21 km =13 mi, 
234°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016