Night Light of Zhicheng (Hubei) from space (China) Src. Average luminocity for 10x10km area is 11.544% and for 50x50km: 3.7855%.
Square area 10x10 km:
 0.55%
 0.92%
 1.47%
 0.73%
 1.47%
 4.21%
 3.48%
 1.83%
 1.1%
 1.28%
 82.97%Square area 50x50 km:
 0.19%
 0.45%
 0.53%
 0.31%
 0.42%
 0.53%
 0.99%
 0.7%
 1.04%
 1.51%
 93.35%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
30° 54' 2.8" North, 110° 48' 5.8" East
30° 17' 44" North, 111° 30' 17" East
29° 41' 11.7" North, 112° 12' 28.3" East
Some cities around Zhicheng sort by population:
• Shashi
		71.1 km =44.2 mi, 
88°
• Yichang
		51.1 km =31.8 mi, 
335°
• Jingzhou
		66.1 km =41.1 mi, 
84°
• Jingmen
		105.9 km =65.8 mi, 
39°
• Xiulin
		107.6 km =66.9 mi, 
126°
• Buhe
		69.6 km =43.2 mi, 
90°
• Jinshi
		84.5 km =52.5 mi, 
155°
• Zhijiang
		27.7 km =17.2 mi, 
59°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016