Night Light of Fenghuang (Hunan) from space (China) Src. Average luminocity for 10x10km area is 7.9716% and for 50x50km: 1.1462%.
Square area 10x10 km:
 0.57%
 0.19%
 3.03%
 0.19%
 1.33%
 1.52%
 1.7%
 2.08%
 0.76%
 0.76%
 87.88%Square area 50x50 km:
 0.1%
 0.08%
 0.18%
 0.33%
 0.16%
 0.09%
 0.2%
 0.22%
 0.03%
 0.11%
 98.49%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
28° 33' 17.9" North, 108° 53' 47.4" East
27° 56' 8.1" North, 109° 35' 58.6" East
27° 18' 45.4" North, 110° 18' 9.9" East
Some cities around Fenghuang sort by population:
• Huaihua
		57.4 km =35.7 mi, 
136°
• Qianzhou
		44.6 km =27.7 mi, 
17°
• Tongren
		47.4 km =29.5 mi, 
239°
• Hongjiang
		99.8 km =62 mi, 
156°
• Anjiang
		84.6 km =52.6 mi, 
144°
• Shiqian
		142.6 km =88.6 mi, 
251°
• Qiancheng
		85 km =52.8 mi, 
168°
• Simenqian
		136.1 km =84.6 mi, 
111°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016