Night Light of Yongfeng (Hunan) from space (China) Src. Average luminocity for 10x10km area is 20.5% and for 50x50km: 1.1308%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
28° 3' 2.2" North, 111° 28' 48.9" East
27° 25' 41.8" North, 112° 11' 0.2" East
26° 48' 8.8" North, 112° 53' 11.4" East
Some cities around Yongfeng sort by population:
• Hengyang
73.8 km =45.9 mi, 144°
• Xiangtan
84.7 km =52.6 mi, 56°
• Loudi
38.8 km =24.1 mi, 331°
• Lengshuijiang
79.7 km =49.5 mi, 291°
• Xiangxiang
48.4 km =30.1 mi, 45°
• Shangmei
94.2 km =58.5 mi, 291°
• Lianyuan
58.8 km =36.5 mi, 299°
• Hongqiao
73.8 km =45.9 mi, 185°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016