Night Light of Yartsevo (Smolensk) from space (Russia) Src. Average luminocity for 10x10km area is 21.1441% and for 50x50km: 0.9714%.
Square area 10x10 km:
 3.51%
 7.02%
 1.13%
 2.63%
 0.75%
 1.25%
 0.25%
 0.88%
 1.5%
 26.57%
 54.51%Square area 50x50 km:
 0.14%
 0.28%
 0.06%
 0.11%
 0.03%
 0.05%
 0.03%
 0.08%
 0.1%
 1.15%
 97.97%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
55° 28' 2.2" North, 31° 59' 35.8" East
55° 4' 0" North, 32° 41' 47" East
54° 39' 43.3" North, 33° 23' 58.3" East
Some cities around Yartsevo sort by population:
• Smolensk
		52.6 km =32.7 mi, 
232°
• Safonovo
		34.5 km =21.4 mi, 
81°
• Verkhnedneprovskiy
		42.5 km =26.4 mi, 
102°
• Dorogobuzh
		41.9 km =26 mi, 
113°
• Yel’nya
		62.6 km =38.9 mi, 
150°
• Pochinok
		75.2 km =46.7 mi, 
192°
• Demidov
		78.4 km =48.7 mi, 
286°
• Ozërnyy
		59.9 km =37.2 mi, 
342°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016