Night Light of Yangliuqing (Tianjin) from space (China) Src. Average luminocity for 10x10km area is 69.3701% and for 50x50km: 48.9868%.
Square area 10x10 km:
 11.04%
 11.04% 13.15%
 13.15% 19.16%
 19.16% 10.06%
 10.06% 13.96%
 13.96% 9.09%
 9.09% 9.42%
 9.42% 3.73%
 3.73% 10.23%
 10.23% 0.16%
 0.16% 0%
 0%Square area 50x50 km:
 14.33%
 14.33% 7.98%
 7.98% 7.39%
 7.39% 5.87%
 5.87% 5.93%
 5.93% 5.84%
 5.84% 5.38%
 5.38% 7.15%
 7.15% 8.76%
 8.76% 11.24%
 11.24% 20.12%
 20.12%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 40' 50.7" North, 116° 17' 47.8" East
39° 8' 15" North, 116° 59' 59" East
38° 35' 24.1" North, 117° 42' 10.3" East
Some cities around Yangliuqing sort by population:
• Tianjin
		15.3 km =9.5 mi,  88°
88°
• Yangcun
		25.7 km =16 mi,  11°
11°
• Beicang
		15.2 km =9.4 mi,  44°
44°
• Hanjiashu
		8.4 km =5.2 mi,  48°
48°
• Qingguang
		7.4 km =4.6 mi,  22°
22°
• Huantuo
		29.6 km =18.4 mi,  70°
70°
• Dabizhuang
		22.9 km =14.2 mi,  74°
74°
• Xiaodian
		23.5 km =14.6 mi,  56°
56°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016