Night Light of Xiaodian (Tianjin) from space (China) Src. Average luminocity for 10x10km area is 69.0544% and for 50x50km: 57.4586%.
Square area 10x10 km:
 11.9%
 11.9% 16.33%
 16.33% 9.69%
 9.69% 13.78%
 13.78% 12.59%
 12.59% 9.69%
 9.69% 12.24%
 12.24% 7.14%
 7.14% 5.61%
 5.61% 1.02%
 1.02% 0%
 0%Square area 50x50 km:
 17.55%
 17.55% 11.7%
 11.7% 9.43%
 9.43% 8.77%
 8.77% 6.87%
 6.87% 4.94%
 4.94% 5.02%
 5.02% 5.01%
 5.01% 6.94%
 6.94% 5.56%
 5.56% 18.21%
 18.21%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 47' 47.3" North, 116° 31' 27.7" East
39° 15' 14.8" North, 117° 13' 38.9" East
38° 42' 27.2" North, 117° 55' 50.2" East
Some cities around Xiaodian sort by population:
• Tianjin
		13.2 km =8.2 mi,  199°
199°
• Beicang
		9.3 km =5.8 mi,  257°
257°
• Huantuo
		8.9 km =5.5 mi,  110°
110°
• Fanzhuang
		11.4 km =7.1 mi,  125°
125°
• Dongditou
		12.6 km =7.8 mi,  83°
83°
• Dabizhuang
		7.2 km =4.5 mi,  160°
160°
• Xiditou
		10.4 km =6.5 mi,  90°
90°
• Liukuaizhuang
		9.7 km =6 mi,  94°
94°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016