Night Light of Decatur (Illinois) from space (United States) Src. Average luminocity for 10x10km area is 76.716% and for 50x50km: 8.6986%.
Square area 10x10 km:
 22.28%
 22.11%
 6.97%
 12.24%
 8.84%
 11.9%
 8.16%
 3.06%
 3.23%
 1.19%
 0%Square area 50x50 km:
 1.27%
 1.36%
 1.13%
 1.23%
 1.19%
 1.54%
 1.12%
 1.43%
 1.92%
 4.33%
 83.48%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
40° 22' 41.1" North, 89° 39' 28.5" West
39° 50' 25.1" North, 88° 57' 17.3" West
39° 17' 53.9" North, 88° 15' 6" West
Some cities around Decatur sort by population:
• Springfield
		59 km =36.7 mi, 
265°
• Lincoln
		48.9 km =30.4 mi, 
314°
• Taylorville
		43.5 km =27 mi, 
221°
• Mahomet
		61.3 km =38.1 mi, 
49°
• Clinton
		34.8 km =21.6 mi, 
358°
• Mount Zion
		10.3 km =6.4 mi, 
138°
• Pana
		51.3 km =31.9 mi, 
192°
• Monticello
		38.6 km =24 mi, 
57°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016