Night Light of Hulan Ergi (Heilongjiang) from space (China) Src. Average luminocity for 10x10km area is 19.7202% and for 50x50km: 4.4792%.
Square area 10x10 km:
 0.3%
 2.08%
 2.23%
 1.64%
 5.36%
 6.4%
 4.02%
 0.6%
 5.8%
 9.23%
 62.35%Square area 50x50 km:
 0.88%
 1.03%
 0.39%
 0.39%
 0.61%
 0.46%
 0.53%
 0.36%
 1.31%
 2.17%
 91.88%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
47° 40' 47" North, 122° 55' 48.8" East
47° 12' 15" North, 123° 37' 60" East
46° 43' 27.6" North, 124° 20' 11.3" East
Some cities around Hulan Ergi sort by population:
• Qiqihar
		29 km =18 mi, 
58°
• Zhalantun
		112 km =69.6 mi, 
323°
• Longjiang
		37.1 km =23.1 mi, 
292°
• Fuyu
		90.5 km =56.2 mi, 
43°
• Tailai
		92.2 km =57.3 mi, 
190°
• Nianzishan
		66.3 km =41.2 mi, 
301°
• Gannan
		79.6 km =49.5 mi, 
352°
• Taikang
		72.2 km =44.9 mi, 
121°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016