Night Light of Chengzihe (Heilongjiang) from space (China) Src. Average luminocity for 10x10km area is 6.3889% and for 50x50km: 2.8027%.
Square area 10x10 km:
 0%
 0%
 0%
 0.95%
 0.95%
 0%
 3.65%
 2.06%
 0.63%
 7.46%
 84.29%Square area 50x50 km:
 0.3%
 0.42%
 0.13%
 0.36%
 0.29%
 0.47%
 0.55%
 0.49%
 0.87%
 2.41%
 93.71%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
45° 49' 31.7" North, 130° 21' 48.8" East
45° 19' 60" North, 131° 4' 0" East
44° 50' 12.8" North, 131° 46' 11.3" East
Some cities around Chengzihe sort by population:
• Jixi
		9.3 km =5.8 mi, 
247°
• Taihecun
		50.7 km =31.5 mi, 
340°
• Fendou
		18.6 km =11.6 mi, 
223°
• Dongxing
		22.1 km =13.7 mi, 
277°
• Boli
		60.5 km =37.6 mi, 
320°
• Linkou
		63.2 km =39.3 mi, 
265°
• Bamiantong
		63.1 km =39.2 mi, 
222°
• Jidong
		13 km =8.1 mi, 
174°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016