Night Light of Polotnyanyy Zavod (Kaluga) from space (Russia) Src. Average luminocity for 10x10km area is 3.6078% and for 50x50km: 4.5257%.
Square area 10x10 km:
 0%
 0.63%
 0.38%
 0.5%
 0%
 0.5%
 1.63%
 1.38%
 1%
 1.13%
 92.86%Square area 50x50 km:
 0.89%
 1.04%
 0.35%
 0.41%
 0.44%
 0.55%
 0.55%
 0.91%
 1.32%
 2.09%
 91.45%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
55° 7' 31.6" North, 35° 15' 46.8" East
54° 43' 17" North, 35° 57' 58" East
54° 18' 47.7" North, 36° 40' 9.3" East
Some cities around Polotnyanyy Zavod sort by population:
• Kaluga
		29.2 km =18.1 mi, 
137°
• Obninsk
		58.6 km =36.4 mi, 
44°
• Maloyaroslavets
		45.9 km =28.5 mi, 
44°
• Kondrovo
		9.8 km =6.1 mi, 
345°
• Tovarkovo
		5.3 km =3.3 mi, 
199°
• Vorotynsk
		33 km =20.5 mi, 
170°
• Yukhnov
		47.3 km =29.4 mi, 
273°
• Medyn’
		28.4 km =17.6 mi, 
345°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016