Night Light of Salem (Illinois) from space (United States) Src. Average luminocity for 10x10km area is 25.7614% and for 50x50km: 4.5127%.
Square area 10x10 km:
2.76%
3.08%
2.76%
6.01%
2.27%
3.9%
2.6%
3.9%
6.49%
24.68%
41.56%Square area 50x50 km:
0.37%
0.6%
0.57%
0.56%
0.47%
0.66%
0.43%
0.98%
1.13%
3.57%
90.66%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 10' 27" North, 89° 38' 55.5" West
38° 37' 37.2" North, 88° 56' 44.2" West
38° 4' 32.1" North, 88° 14' 33" West
Some cities around Salem sort by population:
• Mount Vernon
34.6 km =21.5 mi,
173°
• Centralia
19.9 km =12.4 mi,
235°
• Effingham
64.9 km =40.3 mi,
32°
• Highland
64.2 km =39.9 mi,
281°
• Vandalia
39.3 km =24.4 mi,
340°
• Benton
70.1 km =43.6 mi,
178°
• Greenville
50.1 km =31.1 mi,
306°
• Fairfield
58 km =36 mi,
118°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016