Night Light of Tianfu (Shandong) from space (China) Src. Average luminocity for 10x10km area is 22.648% and for 50x50km: 14.6788%.
Square area 10x10 km:
 0%
 0%
 2.04%
 1.36%
 6.46%
 3.57%
 5.27%
 6.8%
 10.37%
 36.73%
 27.38%Square area 50x50 km:
 1.2%
 1.63%
 2.1%
 2.25%
 2.75%
 3.14%
 2.29%
 3.22%
 4.16%
 8.43%
 68.84%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
37° 49' 16.2" North, 121° 20' 57" East
37° 15' 49.2" North, 122° 3' 8.2" East
36° 42' 7.2" North, 122° 45' 19.5" East
Some cities around Tianfu sort by population:
• Yantai
		59 km =36.7 mi, 
293°
• Laiyang
		122.9 km =76.4 mi, 
254°
• Weihai
		27.8 km =17.3 mi, 
11°
• Dongcun
		96 km =59.7 mi, 
235°
• Yatou
		36.1 km =22.4 mi, 
109°
• Zhuangyuan
		108.5 km =67.4 mi, 
272°
• Qingyang
		74.8 km =46.5 mi, 
290°
• Ninghai
		41.5 km =25.8 mi, 
288°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016