Night Light of Hengshui (Hebei) from space (China) Src. Average luminocity for 10x10km area is 65.0374% and for 50x50km: 8.0317%.
Square area 10x10 km:
 13.78%
 21.09%
 8.16%
 6.46%
 8.16%
 6.29%
 10.54%
 5.1%
 10.03%
 9.01%
 1.36%Square area 50x50 km:
 0.76%
 1.22%
 1%
 0.95%
 1.02%
 1.15%
 1.37%
 1.58%
 2.42%
 4.6%
 83.93%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
38° 17' 10.4" North, 114° 59' 52.8" East
37° 43' 56" North, 115° 42' 4" East
37° 10' 26.6" North, 116° 24' 15.3" East
Some cities around Hengshui sort by population:
• Shijiazhuang
		112.7 km =70 mi, 
287°
• Luancheng
		93.6 km =58.2 mi, 
280°
• Dezhou
		62.1 km =38.6 mi, 
120°
• Dingzhou
		106.5 km =66.2 mi, 
324°
• Xinji
		47.6 km =29.6 mi, 
293°
• Qingnian
		99.2 km =61.6 mi, 
179°
• Nangong
		50.6 km =31.4 mi, 
214°
• Botou
		84.6 km =52.6 mi, 
63°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016