Night Light of Changzhi (Shanxi) from space (China) Src. Average luminocity for 10x10km area is 0.5157% and for 50x50km: 0.7534%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 0.7%
 0%
 0%
 0%
 0%
 0%
 99.3%Square area 50x50 km:
 0%
 0.01%
 0.17%
 0.13%
 0.16%
 0.09%
 0.09%
 0.24%
 0.12%
 0.13%
 98.86%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
35° 46' 52.8" North, 111° 2' 7.8" East
35° 12' 32" North, 111° 44' 19" East
34° 37' 56.5" North, 112° 26' 30.3" East
Some cities around Changzhi sort by population:
• Luoyang
		87.5 km =54.4 mi, 
131°
• Jincheng
		104.4 km =64.9 mi, 
71°
• Linfen
		99.8 km =62 mi, 
348°
• Yuncheng
		70.9 km =44.1 mi, 
253°
• Yima
		54 km =33.6 mi, 
165°
• Xixiang
		102.5 km =63.7 mi, 
92°
• Hancheng
		122 km =75.8 mi, 
283°
• Zijinglu
		122.9 km =76.4 mi, 
113°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016