Night Light of Qiongshan (Hainan) from space (China) Src. Average luminocity for 10x10km area is 94.5437% and for 50x50km: 25.8035%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
20° 39' 54.5" North, 109° 39' 3.8" East
20° 0' 21" North, 110° 21' 15" East
19° 20' 37.5" North, 111° 3' 26.3" East
Some cities around Qiongshan sort by population:
• Zhanjiang
141.8 km =88.1 mi, 359°
• Haikou
4.6 km =2.9 mi, 343°
• Xiuying
6.4 km =4 mi, 264°
• Wenchang
59.9 km =37.2 mi, 136°
• Xucheng
40.9 km =25.4 mi, 331°
• Jinjiang
47.5 km =29.5 mi, 229°
• Wanning
134.2 km =83.4 mi, 178°
• Lincheng
70.7 km =43.9 mi, 261°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016