Night Light of Gaogou (Jiangsu) from space (China) Src. Average luminocity for 10x10km area is 4.0734% and for 50x50km: 3.0925%.
Square area 10x10 km:
 0%
 0% 0.7%
 0.7% 1.4%
 1.4% 0.17%
 0.17% 0.52%
 0.52% 0%
 0% 0.7%
 0.7% 2.1%
 2.1% 0%
 0% 0%
 0% 94.41%
 94.41%Square area 50x50 km:
 0.21%
 0.21% 0.34%
 0.34% 0.41%
 0.41% 0.43%
 0.43% 0.44%
 0.44% 0.3%
 0.3% 0.48%
 0.48% 0.51%
 0.51% 0.69%
 0.69% 3.16%
 3.16% 93.03%
 93.03%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
34° 35' 53.8" North, 118° 29' 7.8" East
34° 1' 3" North, 119° 11' 19" East
33° 25' 57.8" North, 119° 53' 30.3" East
Some cities around Gaogou sort by population:
• Huai'an
		50.2 km =31.2 mi,  198°
198°
• Xinpu
		64.8 km =40.3 mi,  357°
357°
• Hede
		102.7 km =63.8 mi,  105°
105°
• Baoying
		88.4 km =54.9 mi,  172°
172°
• Dongkan
		59.2 km =36.8 mi,  91°
91°
• Haizhou
		63 km =39.1 mi,  355°
355°
• Guiren
		100.1 km =62.2 mi,  247°
247°
• Zhongxing
		58.6 km =36.4 mi,  233°
233°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016