Night Light of Chitu (Tianjin) from space (China) Src. Average luminocity for 10x10km area is 66.2841% and for 50x50km: 55.2179%.
Square area 10x10 km:
 9.9%
 9.9% 10.88%
 10.88% 8.77%
 8.77% 12.01%
 12.01% 16.72%
 16.72% 15.42%
 15.42% 15.1%
 15.1% 8.12%
 8.12% 3.08%
 3.08% 0%
 0% 0%
 0%Square area 50x50 km:
 19.5%
 19.5% 11.28%
 11.28% 7.71%
 7.71% 8.34%
 8.34% 6.93%
 6.93% 3.76%
 3.76% 4.21%
 4.21% 3.68%
 3.68% 3.76%
 3.76% 5.55%
 5.55% 25.29%
 25.29%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 44' 45.9" North, 116° 41' 58.8" East
39° 12' 12" North, 117° 24' 10" East
38° 39' 22.9" North, 118° 6' 21.3" East
Some cities around Chitu sort by population:
• Zaojiacheng
		8.7 km =5.4 mi,  19°
19°
• Huantuo
		7.3 km =4.5 mi,  290°
290°
• Fanzhuang
		5.9 km =3.7 mi,  259°
259°
• Dongditou
		7.5 km =4.7 mi,  339°
339°
• Dabizhuang
		12.7 km =7.9 mi,  264°
264°
• Xiditou
		7.3 km =4.5 mi,  319°
319°
• Liukuaizhuang
		7.4 km =4.6 mi,  312°
312°
• Dawangtai
		10.7 km =6.6 mi,  41°
41°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016