Night Light of Duyun (Guizhou) from space (China) Src. Average luminocity for 10x10km area is 42.0298% and for 50x50km: 3.6017%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
26° 53' 43.7" North, 106° 48' 48.8" East
26° 16' 0" North, 107° 31' 0" East
25° 38' 4" North, 108° 13' 11.3" East
Some cities around Duyun sort by population:
• Guiyang
87.1 km =54.1 mi, 293°
• Zunyi
169 km =105 mi, 339°
• Anshun
157.9 km =98.1 mi, 269°
• Tongren
231 km =143.5 mi, 45°
• Loushanguan
219 km =136.1 mi, 341°
• Xiaoweizhai
8.5 km =5.3 mi, 182°
• Shiqian
156.4 km =97.2 mi, 26°
• Shuangjiang
219.5 km =136.4 mi, 93°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016