Night Light of Biaokou (Tianjin) from space (China) Src. Average luminocity for 10x10km area is 2.9133% and for 50x50km: 27.0826%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 52' 1.4" North, 116° 51' 2.4" East
39° 19' 31" North, 117° 33' 13.6" East
38° 46' 45.3" North, 118° 15' 24.9" East
Some cities around Biaokou sort by population:
• Chitu
18.8 km =11.7 mi, 223°
• Beihuaidian
7.5 km =4.7 mi, 173°
• Zaojiacheng
11.5 km =7.1 mi, 242°
• Dongditou
16.9 km =10.5 mi, 247°
• Xitangtuo
5.6 km =3.5 mi, 266°
• Xiditou
19.4 km =12.1 mi, 245°
• Liukuaizhuang
20.4 km =12.7 mi, 244°
• Dawangtai
8.1 km =5 mi, 226°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016