Night Light of Langxiang (Heilongjiang) from space (China) Src. Average luminocity for 10x10km area is 0.3892% and for 50x50km: 0.0462%.
Square area 10x10 km:
 0%
 0%
 0%
 0%
 0.57%
 0%
 0%
 0%
 0%
 0%
 99.43%Square area 50x50 km:
 0%
 0%
 0%
 0%
 0.02%
 0.02%
 0%
 0.05%
 0%
 0%
 99.91%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
47° 25' 39.6" North, 128° 9' 55.3" East
46° 56' 59.5" North, 128° 52' 6.6" East
46° 28' 3.8" North, 129° 34' 17.8" East
Some cities around Langxiang sort by population:
• Hegang
		117.1 km =72.8 mi, 
67°
• Jiamusi
		111.3 km =69.2 mi, 
98°
• Yichun
		85.8 km =53.3 mi, 
0°
• Lianhe
		36.9 km =22.9 mi, 
56°
• Tieli
		62.6 km =38.9 mi, 
273°
• Youhao
		100.5 km =62.4 mi, 
358°
• Yilan
		87.8 km =54.6 mi, 
143°
• Suileng
		138.2 km =85.9 mi, 
283°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016