Night Light of Xishan (Hunan) from space (China) Src. Average luminocity for 10x10km area is 28.5476% and for 50x50km: 1.452%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
28° 17' 15.4" North, 112° 47' 48.8" East
27° 40' 0" North, 113° 30' 0" East
27° 2' 31.8" North, 114° 12' 11.3" East
Some cities around Xishan sort by population:
• Changsha
78.8 km =49 mi, 318°
• Guankou
56.1 km =34.9 mi, 12°
• Zhuzhou
39.1 km =24.3 mi, 298°
• Xiangtan
62.5 km =38.8 mi, 289°
• Pingxiang
35.3 km =21.9 mi, 99°
• Yichun
90.5 km =56.2 mi, 78°
• Xiangxiang
95.5 km =59.3 mi, 274°
• Yutan
113.3 km =70.4 mi, 305°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016