Night Light of Fangshan (Beijing) from space (China) Src. Average luminocity for 10x10km area is 60.9075% and for 50x50km: 28.9867%.
Square area 10x10 km:
 4.55%
 4.55% 9.25%
 9.25% 14.61%
 14.61% 10.55%
 10.55% 16.56%
 16.56% 6.98%
 6.98% 12.34%
 12.34% 10.55%
 10.55% 14.45%
 14.45% 0.16%
 0.16% 0%
 0%Square area 50x50 km:
 4.56%
 4.56% 4.79%
 4.79% 5.17%
 5.17% 5.01%
 5.01% 5.24%
 5.24% 3.36%
 3.36% 3.33%
 3.33% 4.21%
 4.21% 5.29%
 5.29% 10.48%
 10.48% 48.56%
 48.56%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
40° 13' 33.4" North, 115° 17' 36.5" East
39° 41' 13.2" North, 115° 59' 47.7" East
39° 8' 37.6" North, 116° 41' 59" East
Some cities around Fangshan sort by population:
• Beijing
		42.1 km =26.2 mi,  54°
54°
• Langfang
		63 km =39.1 mi,  108°
108°
• Mentougou
		29.1 km =18.1 mi,  16°
16°
• Tongzhou
		61.7 km =38.3 mi,  67°
67°
• Shunyi
		73.6 km =45.7 mi,  48°
48°
• Daxing
		28.9 km =18 mi,  78°
78°
• Changping
		62.2 km =38.6 mi,  19°
19°
• Liangxiang
		12.9 km =8 mi,  64°
64°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016