Night Light of Nangong (Hebei) from space (China) Src. Average luminocity for 10x10km area is 15.6575% and for 50x50km: 2.2999%.
Square area 10x10 km:
 0%
 0%
 1.62%
 1.95%
 2.11%
 4.71%
 7.63%
 5.68%
 1.62%
 4.22%
 70.45%Square area 50x50 km:
 0%
 0.02%
 0.34%
 0.38%
 0.35%
 0.46%
 0.71%
 0.77%
 0.39%
 0.75%
 95.83%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
37° 54' 53.5" North, 114° 40' 16.8" East
37° 21' 29" North, 115° 22' 28" East
36° 47' 49.6" North, 116° 4' 39.3" East
Some cities around Nangong sort by population:
• Shijiazhuang
		109.5 km =68 mi, 
313°
• Xingtai
		84.6 km =52.6 mi, 
247°
• Luancheng
		86.1 km =53.5 mi, 
312°
• Hengshui
		50.6 km =31.4 mi, 
34°
• Dezhou
		83.3 km =51.8 mi, 
82°
• Xinji
		62.4 km =38.8 mi, 
346°
• Shahecheng
		90 km =55.9 mi, 
238°
• Qingnian
		64.9 km =40.3 mi, 
152°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016