Night Light of Marion (Illinois) from space (United States) Src. Average luminocity for 10x10km area is 45.7228% and for 50x50km: 9.6337%.
Square area 10x10 km:
 9.18%
 5.95%
 4.59%
 5.1%
 7.82%
 6.97%
 5.78%
 11.05%
 16.84%
 23.81%
 2.89%Square area 50x50 km:
 0.85%
 0.79%
 1.33%
 0.87%
 1.17%
 1.48%
 1.4%
 2.87%
 3.24%
 9.13%
 76.87%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
38° 17' 4.6" North, 89° 38' 10.5" West
37° 43' 50.2" North, 88° 55' 59.3" West
37° 10' 20.7" North, 88° 13' 48" West
Some cities around Marion sort by population:
• Carbondale
		24.9 km =15.5 mi, 
269°
• Herrin
		11.6 km =7.2 mi, 
314°
• Harrisburg
		34.5 km =21.4 mi, 
88°
• West Frankfort
		18.6 km =11.6 mi, 
0°
• Murphysboro
		35.5 km =22.1 mi, 
276°
• Benton
		29.6 km =18.4 mi, 
2°
• Du Quoin
		41 km =25.5 mi, 
319°
• Carterville
		13.1 km =8.1 mi, 
284°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016