Night Light of Tongzhou (Beijing) from space (China) Src. Average luminocity for 10x10km area is 95.8469% and for 50x50km: 68.4979%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
40° 26' 28.4" North, 115° 57' 31.4" East
39° 54' 14.2" North, 116° 39' 42.6" East
39° 21' 44.8" North, 117° 21' 53.9" East
Some cities around Tongzhou sort by population:
• Beijing
22.6 km =14 mi, 271°
• Langfang
43.9 km =27.3 mi, 176°
• Mentougou
48.6 km =30.2 mi, 274°
• Shunyi
24.2 km =15 mi, 357°
• Daxing
33.9 km =21.1 mi, 237°
• Changping
50.3 km =31.3 mi, 313°
• Liangxiang
48.9 km =30.4 mi, 247°
• Bangjun
52.1 km =32.4 mi, 79°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016