Night Light of Alton (Illinois) from space (United States) Src. Average luminocity for 10x10km area is 55.7772% and for 50x50km: 38.0934%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 26' 8.7" North, 90° 53' 14.7" West
38° 53' 26.2" North, 90° 11' 3.4" West
38° 20' 28.4" North, 89° 28' 52.2" West
Some cities around Alton sort by population:
• Upper Alton
3.7 km =2.3 mi, 51°
• Spanish Lake
11.8 km =7.3 mi, 193°
• Old Jamestown
10.7 km =6.6 mi, 234°
• Godfrey
7.2 km =4.5 mi, 358°
• Wood River
8.2 km =5.1 mi, 113°
• Bethalto
12.6 km =7.8 mi, 80°
• Black Jack
13 km =8.1 mi, 213°
• East Alton
6.4 km =4 mi, 100°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016