Night Light of Powell (Ohio) from space (United States) Src. Average luminocity for 10x10km area is 70.2062% and for 50x50km: 42.4105%.
Square area 10x10 km:
 8.77%
 12.18%
 6.33%
 21.59%
 20.94%
 18.02%
 8.44%
 2.76%
 0.97%
 0%
 0%Square area 50x50 km:
 13.88%
 11.36%
 4.19%
 4.32%
 4.6%
 3.4%
 2.91%
 3.09%
 5.97%
 9.53%
 36.74%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
40° 41' 35.1" North, 83° 46' 42" West
40° 9' 28.2" North, 83° 4' 30.7" West
39° 37' 6" North, 82° 22' 19.5" West
Some cities around Powell sort by population:
• Dublin
		7.3 km =4.5 mi, 
206°
• Westerville
		12.9 km =8 mi, 
105°
• Delaware
		15.7 km =9.8 mi, 
2°
• Upper Arlington
		18.2 km =11.3 mi, 
176°
• Hilliard
		15.5 km =9.6 mi, 
207°
• Worthington
		8.7 km =5.4 mi, 
145°
• Lewis Center
		7.1 km =4.4 mi, 
50°
• Grandview Heights
		20 km =12.4 mi, 
171°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016