Night Light of Kasli (Chelyabinsk) from space (Russia) Src. Average luminocity for 10x10km area is 4.2494% and for 50x50km: 3.6862%.
Square area 10x10 km:
 0.63%
 0.38%
 0%
 0%
 1%
 2.01%
 0.5%
 0%
 2.51%
 0.63%
 92.36%Square area 50x50 km:
 0.75%
 0.67%
 0.25%
 0.32%
 0.41%
 0.37%
 0.3%
 0.24%
 0.27%
 3.63%
 92.8%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
56° 16' 59.5" North, 60° 3' 30.5" East
55° 53' 27.2" North, 60° 45' 41.8" East
55° 29' 40.6" North, 61° 27' 53" East
Some cities around Kasli sort by population:
• Ozersk
		15.5 km =9.6 mi, 
193°
• Snezhinsk
		21.7 km =13.5 mi, 
355°
• Kyshtym
		23.6 km =14.7 mi, 
213°
• Verkhniy Ufaley
		37.3 km =23.2 mi, 
299°
• Argayash
		45.3 km =28.1 mi, 
170°
• Novogornyy
		29.1 km =18.1 mi, 
176°
• Kunashak
		53.5 km =33.2 mi, 
112°
• Vishnëvogorsk
		12.9 km =8 mi, 
329°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016