Night Light of Lengshuijiang (Hunan) from space (China) Src. Average luminocity for 10x10km area is 17.9167% and for 50x50km: 2.3475%.
Square area 10x10 km:
 1.59%
 2.38%
 2.38%
 0.99%
 4.56%
 2.98%
 2.58%
 2.58%
 1.98%
 4.96%
 73.02%Square area 50x50 km:
 0.22%
 0.43%
 0.25%
 0.12%
 0.31%
 0.38%
 0.38%
 0.34%
 0.33%
 0.97%
 96.28%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
28° 18' 32" North, 110° 43' 34.8" East
27° 41' 17" North, 111° 25' 46" East
27° 3' 49.2" North, 112° 7' 57.3" East
Some cities around Lengshuijiang sort by population:
• Loudi
		55.9 km =34.7 mi, 
84°
• Xiangxiang
		108.8 km =67.6 mi, 
87°
• Shangmei
		14.5 km =9 mi, 
294°
• Yongfeng
		79.7 km =49.5 mi, 
111°
• Lianyuan
		23.1 km =14.4 mi, 
89°
• Shijiang
		92.1 km =57.2 mi, 
222°
• Liuduzhai
		60.5 km =37.6 mi, 
233°
• Simenqian
		58 km =36 mi, 
247°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016