Night Light of Xi’an (Shaanxi) from space (China) Src. Average luminocity for 10x10km area is 99.511% and for 50x50km: 59.5129%.
Square area 10x10 km:
 82.05%
 16.48%
 1.1%
 0.37%
 0%
 0%
 0%
 0%
 0%
 0%
 0%Square area 50x50 km:
 17.04%
 11.29%
 8.03%
 10.42%
 7.76%
 7%
 6.75%
 5.22%
 6.78%
 9.39%
 10.32%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
34° 50' 14.9" North, 108° 13' 31.8" East
34° 15' 30" North, 108° 55' 43" East
33° 40' 30.7" North, 109° 37' 54.3" East
Some cities around Xi’an sort by population:
• Xianyang
		22.6 km =14 mi, 
293°
• Huayin
		109.8 km =68.2 mi, 
71°
• Tongchuanshi
		91.9 km =57.1 mi, 
8°
• Weinan
		59.8 km =37.2 mi, 
62°
• Guozhen
		144.6 km =89.9 mi, 
274°
• Lintong
		29 km =18 mi, 
62°
• Yanliang
		52.4 km =32.6 mi, 
31°
• Yuxia
		35.2 km =21.9 mi, 
231°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016