Night Light of Zaokskiy (Tula) from space (Russia) Src. Average luminocity for 10x10km area is 3.2343% and for 50x50km: 5.2146%.
Square area 10x10 km:
 0%
 0%
 0.5%
 0.25%
 0.25%
 0.25%
 0%
 0.5%
 1.38%
 3.38%
 93.48%Square area 50x50 km:
 0.72%
 1.08%
 0.53%
 0.47%
 0.6%
 0.54%
 0.45%
 0.69%
 1.23%
 3.75%
 89.96%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
55° 8' 10.4" North, 36° 42' 8.2" East
54° 43' 56.2" North, 37° 24' 19.4" East
54° 19' 27.3" North, 38° 6' 30.7" East
Some cities around Zaokskiy sort by population:
• Serpukhov
		20.4 km =12.7 mi, 
1°
• Aleksin
		33.3 km =20.7 mi, 
220°
• Protvino
		19.4 km =12.1 mi, 
321°
• Pushchino
		17.4 km =10.8 mi, 
49°
• Yasnogorsk
		33.7 km =20.9 mi, 
145°
• Kremenki
		25.1 km =15.6 mi, 
313°
• Tarusa
		15 km =9.3 mi, 
266°
• Obolensk
		29.6 km =18.4 mi, 
336°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016