Night Light of Nianzishan (Heilongjiang) from space (China) Src. Average luminocity for 10x10km area is 1.9744% and for 50x50km: 0.761%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 0.57%
 1.14%
 0%
 1.28%
 1.42%
 0.71%
 94.89%Square area 50x50 km:
 0.1%
 0.13%
 0.05%
 0.09%
 0.06%
 0.14%
 0.1%
 0.14%
 0.26%
 0.31%
 98.62%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
47° 59' 21.8" North, 122° 10' 48.8" East
47° 31' 0" North, 122° 52' 60" East
47° 2' 22.7" North, 123° 35' 11.3" East
Some cities around Nianzishan sort by population:
• Qiqihar
		83.3 km =51.8 mi, 
103°
• Hulan Ergi
		66.3 km =41.2 mi, 
121°
• Zhalantun
		55.9 km =34.7 mi, 
348°
• Longjiang
		30.3 km =18.8 mi, 
132°
• Fuyu
		121.9 km =75.7 mi, 
75°
• Tailai
		131.7 km =81.8 mi, 
162°
• Gannan
		64.1 km =39.8 mi, 
46°
• Taikang
		138.5 km =86.1 mi, 
121°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016