Night Light of Pyatigorsk (Stavropol’ Kray) from space (Russia) Src. Average luminocity for 10x10km area is 47.7429% and for 50x50km: 7.0097%.
Square area 10x10 km:
 8.1%
 11.27%
 4.44%
 5.87%
 5.24%
 5.71%
 6.67%
 8.57%
 18.73%
 24.76%
 0.63%Square area 50x50 km:
 0.77%
 1.14%
 0.54%
 0.75%
 0.8%
 0.98%
 1.03%
 0.93%
 1.54%
 7.63%
 83.88%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
44° 33' 6.6" North, 42° 21' 22.8" East
44° 2' 55" North, 43° 3' 34" East
43° 32' 27.9" North, 43° 45' 45.3" East
Some cities around Pyatigorsk sort by population:
• Goryachevodskiy
		3.8 km =2.4 mi, 
136°
• Inozemtsevo
		5.5 km =3.4 mi, 
27°
• Zheleznovodsk
		10.6 km =6.6 mi, 
342°
• Lermontov
		9.4 km =5.8 mi, 
313°
• Svobody
		2.7 km =1.7 mi, 
195°
• Vinsady
		8.3 km =5.2 mi, 
295°
• Yutsa
		10.9 km =6.8 mi, 
199°
• Konstantinovskaya
		7.9 km =4.9 mi, 
92°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016