Night Light of Usman’ (Lipetsk Oblast) from space (Russia) Src. Average luminocity for 10x10km area is 12.0126% and for 50x50km: 0.6161%.
Square area 10x10 km:
 0.25%
 0.76%
 1.14%
 3.54%
 4.29%
 0.63%
 1.14%
 1.89%
 1.01%
 3.91%
 81.44%Square area 50x50 km:
 0.01%
 0.04%
 0.06%
 0.15%
 0.18%
 0.05%
 0.11%
 0.08%
 0.15%
 0.21%
 98.97%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
52° 28' 37.1" North, 39° 1' 32.4" East
52° 2' 47.8" North, 39° 43' 43.7" East
51° 36' 43.5" North, 40° 25' 54.9" East
Some cities around Usman’ sort by population:
• Novaya Usman’
		50.1 km =31.1 mi, 
206°
• Somovo
		42.1 km =26.2 mi, 
216°
• Ramon’
		30.6 km =19 mi, 
241°
• Verkhnyaya Khava
		27.2 km =16.9 mi, 
147°
• Volya
		33.9 km =21.1 mi, 
202°
• Khlevnoye
		46.4 km =28.8 mi, 
290°
• Borinskoye
		51.7 km =32.1 mi, 
331°
• Krasnolesnyy
		20.8 km =12.9 mi, 
207°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016