Night Light of Chizhou (Anhui) from space (China) Src. Average luminocity for 10x10km area is 41.6311% and for 50x50km: 4.0197%.
Square area 10x10 km:
 5.94%
 5.94% 8.22%
 8.22% 8.22%
 8.22% 2.62%
 2.62% 6.82%
 6.82% 4.2%
 4.2% 8.57%
 8.57% 2.45%
 2.45% 6.99%
 6.99% 36.01%
 36.01% 9.97%
 9.97%Square area 50x50 km:
 0.3%
 0.3% 0.49%
 0.49% 0.83%
 0.83% 0.33%
 0.33% 0.53%
 0.53% 0.38%
 0.38% 0.8%
 0.8% 0.39%
 0.39% 0.86%
 0.86% 3.47%
 3.47% 91.62%
 91.62%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
31° 15' 51.4" North, 116° 46' 29" East
30° 39' 40.8" North, 117° 28' 40.2" East
30° 3' 16.7" North, 118° 10' 51.5" East
Some cities around Chizhou sort by population:
• Hefei
		135 km =83.9 mi,  352°
352°
• Wuhu
		113.7 km =70.6 mi,  48°
48°
• Anqing
		44.4 km =27.6 mi,  248°
248°
• Wusong
		43.4 km =27 mi,  42°
42°
• Chaohu
		110.7 km =68.8 mi,  19°
19°
• Xuanzhou
		126.2 km =78.4 mi,  75°
75°
• Lucheng
		66.3 km =41.2 mi,  343°
343°
• Huangshan
		132.6 km =82.4 mi,  142°
142°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016