Night Light of Sun Prairie (Wisconsin) from space (United States) Src. Average luminocity for 10x10km area is 36.2985% and for 50x50km: 16.5449%.
Square area 10x10 km:
 6.97%
 6.82%
 4.39%
 3.33%
 3.94%
 3.03%
 5.61%
 7.58%
 13.18%
 20.91%
 24.24%Square area 50x50 km:
 2.11%
 2.28%
 2.52%
 2.21%
 2.63%
 2.95%
 2.36%
 2.55%
 5.14%
 7.95%
 67.31%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 41' 38.9" North, 89° 55' 0.7" West
43° 11' 1" North, 89° 12' 49.4" West
42° 40' 7.5" North, 88° 30' 38.2" West
Some cities around Sun Prairie sort by population:
• Madison
		19.6 km =12.2 mi, 
231°
• Middleton
		25.5 km =15.8 mi, 
247°
• Waunakee
		19.6 km =12.2 mi, 
272°
• De Forest
		12.7 km =7.9 mi, 
304°
• McFarland
		20 km =12.4 mi, 
197°
• Monona
		16.7 km =10.4 mi, 
215°
• Cottage Grove
		12 km =7.5 mi, 
174°
• Lake Mills
		27 km =16.8 mi, 
114°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016