Night Light of Troitsk (Chelyabinsk) from space (Russia) Src. Average luminocity for 10x10km area is 24.7967% and for 50x50km: 1.4503%.
Square area 10x10 km:
 3.03%
 4.29%
 4.8%
 3.54%
 2.78%
 3.54%
 0.25%
 2.15%
 0.51%
 33.96%
 41.16%Square area 50x50 km:
 0.14%
 0.2%
 0.25%
 0.22%
 0.14%
 0.26%
 0.11%
 0.15%
 0.04%
 1.4%
 97.1%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
54° 30' 29.4" North, 60° 52' 27" East
54° 5' 52.4" North, 61° 34' 38.3" East
53° 41' 0.7" North, 62° 16' 49.5" East
Some cities around Troitsk sort by population:
• Yuzhnoural’sk
		43.6 km =27.1 mi, 
331°
• Yemanzhelinsk
		74.9 km =46.5 mi, 
347°
• Plast
		58.1 km =36.1 mi, 
301°
• Krasnogorskiy
		60.4 km =37.5 mi, 
338°
• Uvel’skiy
		41.1 km =25.5 mi, 
339°
• Komsomolets, KZ
		49.9 km =31 mi, 
140°
• Yetkul’
		80.5 km =50 mi, 
0°
• Chesma
		68.3 km =42.4 mi, 
242°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016