Night Light of Krasnoarmeysk (Saratovskaya Oblast) from space (Russia) Src. Average luminocity for 10x10km area is 1.3195% and for 50x50km: 0.152%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 0.53%
 0%
 1.07%
 0%
 0.8%
 1.34%
 96.26%Square area 50x50 km:
 0%
 0%
 0%
 0.02%
 0.04%
 0.01%
 0.13%
 0.05%
 0.04%
 0.05%
 99.66%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
51° 27' 50.6" North, 44° 59' 37.8" East
51° 1' 26" North, 45° 41' 49" East
50° 34' 46.3" North, 46° 24' 0.3" East
Some cities around Krasnoarmeysk sort by population:
• Saratov
		61.4 km =38.2 mi, 
20°
• Engel’s
		58.5 km =36.4 mi, 
29°
• Privolzhskiy
		49.4 km =30.7 mi, 
29°
• Zhirnovsk
		64.8 km =40.3 mi, 
266°
• Svetlyy
		72.4 km =45 mi, 
356°
• Tatishchevo
		72.2 km =44.9 mi, 
354°
• Sokolovyy
		61.3 km =38.1 mi, 
8°
• Rovnoye
		37 km =23 mi, 
137°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016