Night Light of Yichun (Heilongjiang) from space (China) Src. Average luminocity for 10x10km area is 4.9345% and for 50x50km: 0.2501%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 0%
 0.74%
 4.61%
 2.23%
 3.87%
 1.04%
 87.5%Square area 50x50 km:
 0%
 0%
 0%
 0%
 0.02%
 0.05%
 0.22%
 0.1%
 0.15%
 0.06%
 99.39%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
48° 11' 32.3" North, 128° 10' 19.8" East
47° 43' 17.1" North, 128° 52' 31" East
47° 14' 46.5" North, 129° 34' 42.3" East
Some cities around Yichun sort by population:
• Hegang
		114.6 km =71.2 mi, 
111°
• Lianhe
		71.9 km =44.7 mi, 
155°
• Tieli
		103.4 km =64.2 mi, 
217°
• Youhao
		14.9 km =9.3 mi, 
348°
• Langxiang
		85.8 km =53.3 mi, 
180°
• Suileng
		143.7 km =89.3 mi, 
248°
• Xinqing
		79.2 km =49.2 mi, 
37°
• Fengxiang
		146.8 km =91.2 mi, 
96°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016