Night Light of Changchun (Jilin) from space (China) Src. Average luminocity for 10x10km area is 99.2921% and for 50x50km: 29.9746%.
Square area 10x10 km:
 76.67%
 21.59%
 1.59%
 0.16%
 0%
 0%
 0%
 0%
 0%
 0%
 0%Square area 50x50 km:
 8.4%
 6.4%
 2.92%
 3.15%
 3.82%
 3.45%
 3.41%
 3.37%
 5.17%
 9.73%
 50.2%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
44° 23' 4.7" North, 124° 37' 10.8" East
43° 52' 48" North, 125° 19' 22" East
43° 22' 15.7" North, 126° 1' 33.3" East
Some cities around Changchun sort by population:
• Jilin
		99.3 km =61.7 mi, 
91°
• Jiutai
		50.8 km =31.6 mi, 
53°
• Gongzhuling
		58.4 km =36.3 mi, 
223°
• Dehui
		78.6 km =48.8 mi, 
22°
• Shuangyang
		48.6 km =30.2 mi, 
144°
• Lishu
		102.5 km =63.7 mi, 
231°
• Xinglongshan
		14.3 km =8.9 mi, 
53°
• Yantongshan
		85.6 km =53.2 mi, 
139°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016