Night Light of Zhangzhou (Fujian) from space (China) Src. Average luminocity for 10x10km area is 86.2718% and for 50x50km: 24.9789%.
Square area 10x10 km:
 30.75%
 29.76%
 9.13%
 9.13%
 9.52%
 6.75%
 3.57%
 1.39%
 0%
 0%
 0%Square area 50x50 km:
 2.93%
 3.63%
 1.43%
 4.28%
 5.2%
 5.16%
 4.95%
 5.08%
 6.72%
 10.42%
 50.19%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
25° 9' 5.2" North, 116° 57' 8.8" East
24° 30' 48" North, 117° 39' 20" East
23° 52' 19.1" North, 118° 21' 31.3" East
Some cities around Zhangzhou sort by population:
• Xiamen
		43.3 km =26.9 mi, 
94°
• Ximeicun
		90.7 km =56.4 mi, 
54°
• Jinjiang
		98.9 km =61.5 mi, 
69°
• Shima
		17.5 km =10.9 mi, 
115°
• Jincheng, TW
		67.5 km =41.9 mi, 
97°
• Xindian
		60.1 km =37.3 mi, 
79°
• Jinjing
		95.5 km =59.3 mi, 
85°
• Longmen
		66.2 km =41.1 mi, 
41°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016