Night Light of Plast (Chelyabinsk) from space (Russia) Src. Average luminocity for 10x10km area is 8.5426% and for 50x50km: 0.4611%.
Square area 10x10 km:
 0.25%
 0.25%
 3.01%
 1.75%
 1.88%
 1.75%
 0.13%
 0%
 0%
 0%
 90.98%Square area 50x50 km:
 0.01%
 0.01%
 0.14%
 0.07%
 0.11%
 0.13%
 0.01%
 0.05%
 0%
 0.02%
 99.45%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
54° 46' 36.2" North, 60° 6' 37.8" East
54° 22' 8.9" North, 60° 48' 49" East
53° 57' 26.9" North, 61° 31' 0.3" East
Some cities around Plast sort by population:
• Troitsk
		58.1 km =36.1 mi, 
121°
• Korkino
		69.1 km =42.9 mi, 
32°
• Yuzhnoural’sk
		29.6 km =18.4 mi, 
74°
• Yemanzhelinsk
		53.9 km =33.5 mi, 
37°
• Krasnogorskiy
		37.4 km =23.2 mi, 
46°
• Uvel’skiy
		36.2 km =22.5 mi, 
76°
• Uyskoye
		52.4 km =32.6 mi, 
271°
• Chesma
		62.9 km =39.1 mi, 
189°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016