Night Light of Dongditou (Tianjin) from space (China) Src. Average luminocity for 10x10km area is 46.6293% and for 50x50km: 46.8347%.
Square area 10x10 km:
 0.51%
 0.51% 2.04%
 2.04% 12.41%
 12.41% 7.99%
 7.99% 7.48%
 7.48% 12.76%
 12.76% 14.46%
 14.46% 12.59%
 12.59% 11.9%
 11.9% 15.65%
 15.65% 2.21%
 2.21%Square area 50x50 km:
 16.23%
 16.23% 9.35%
 9.35% 6.7%
 6.7% 6.99%
 6.99% 5.05%
 5.05% 3.4%
 3.4% 3.85%
 3.85% 3.44%
 3.44% 3.89%
 3.89% 6.21%
 6.21% 34.9%
 34.9%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 48' 31.2" North, 116° 40' 10.6" East
39° 15' 59.1" North, 117° 22' 21.8" East
38° 43' 11.7" North, 118° 4' 33.1" East
Some cities around Dongditou sort by population:
• Chitu
		7.5 km =4.7 mi,  159°
159°
• Zaojiacheng
		5.6 km =3.5 mi,  77°
77°
• Huantuo
		6.1 km =3.8 mi,  223°
223°
• Fanzhuang
		8.7 km =5.4 mi,  201°
201°
• Xitangtuo
		11.7 km =7.3 mi,  57°
57°
• Xiditou
		2.5 km =1.6 mi,  236°
236°
• Liukuaizhuang
		3.5 km =2.2 mi,  234°
234°
• Dawangtai
		9.7 km =6 mi,  84°
84°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016