Night Light of Du Quoin (Illinois) from space (United States) Src. Average luminocity for 10x10km area is 18.5487% and for 50x50km: 5.0125%.
Square area 10x10 km:
 1.95%
 1.62%
 3.57%
 3.08%
 2.76%
 2.6%
 0.65%
 1.95%
 4.71%
 9.09%
 68.02%Square area 50x50 km:
 0.2%
 0.39%
 0.91%
 0.5%
 0.72%
 0.59%
 0.6%
 1.09%
 1.19%
 3.74%
 90.06%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
38° 33' 48" North, 89° 56' 21.6" West
38° 0' 41.2" North, 89° 14' 10.3" West
37° 27' 19.3" North, 88° 31' 59.1" West
Some cities around Du Quoin sort by population:
• Carbondale
		31.6 km =19.6 mi, 
176°
• Marion
		41 km =25.5 mi, 
139°
• Herrin
		29.5 km =18.3 mi, 
141°
• West Frankfort
		29.6 km =18.4 mi, 
115°
• Murphysboro
		28.8 km =17.9 mi, 
197°
• Benton
		27.7 km =17.2 mi, 
93°
• Carterville
		31.2 km =19.4 mi, 
153°
• Pinckneyville
		14.9 km =9.3 mi, 
300°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016