Night Light of Chaplygin (Lipetsk Oblast) from space (Russia) Src. Average luminocity for 10x10km area is 5.6881% and for 50x50km: 0.3368%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 1.52%
 2.15%
 3.28%
 2.15%
 1.52%
 0.76%
 88.64%Square area 50x50 km:
 0.01%
 0.01%
 0%
 0%
 0.1%
 0.11%
 0.13%
 0.14%
 0.09%
 0.07%
 99.33%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
53° 39' 42.8" North, 39° 15' 35.1" East
53° 14' 35.5" North, 39° 57' 46.4" East
52° 49' 13.3" North, 40° 39' 57.6" East
Some cities around Chaplygin sort by population:
• Michurinsk
		52.1 km =32.4 mi, 
137°
• Dankov
		53.7 km =33.4 mi, 
270°
• Ryazhsk
		52.1 km =32.4 mi, 
10°
• Pervomayskiy
		21.6 km =13.4 mi, 
88°
• Lev Tolstoy
		34.6 km =21.5 mi, 
264°
• Staroyur’yevo
		50.2 km =31.2 mi, 
80°
• Zavoronezhskoye
		56.4 km =35 mi, 
135°
• Dobroye
		43 km =26.7 mi, 
193°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016