Night Light of Uvel’skiy (Chelyabinsk) from space (Russia) Src. Average luminocity for 10x10km area is 9.3266% and for 50x50km: 1.0433%.
Square area 10x10 km:
 0.96%
 1.32%
 0.6%
 1.44%
 0.6%
 1.32%
 1.79%
 2.51%
 0.48%
 5.62%
 83.37%Square area 50x50 km:
 0.15%
 0.12%
 0.11%
 0.15%
 0.1%
 0.18%
 0.13%
 0.12%
 0.08%
 0.62%
 98.22%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
54° 51' 5.1" North, 60° 39' 15.4" East
54° 26' 40.6" North, 61° 21' 26.6" East
54° 2' 1.3" North, 62° 3' 37.9" East
Some cities around Uvel’skiy sort by population:
• Troitsk
		41.1 km =25.5 mi, 
159°
• Korkino
		49.7 km =30.9 mi, 
2°
• Yuzhnoural’sk
		6.7 km =4.2 mi, 
267°
• Yemanzhelinsk
		34.6 km =21.5 mi, 
356°
• Plast
		36.2 km =22.5 mi, 
256°
• Roza
		52.9 km =32.9 mi, 
7°
• Krasnogorskiy
		19.4 km =12.1 mi, 
335°
• Yetkul’
		44.5 km =27.7 mi, 
19°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016