Night Light of Hongqiao (Hunan) from space (China) Src. Average luminocity for 10x10km area is 12.4405% and for 50x50km: 0.8807%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
27° 23' 39.8" North, 111° 24' 18.1" East
26° 46' 6.1" North, 112° 6' 29.3" East
26° 8' 19.9" North, 112° 48' 40.6" East
Some cities around Hongqiao sort by population:
• Hengyang
52.4 km =32.6 mi, 75°
• Loudi
108 km =67.1 mi, 354°
• Leiyang
85 km =52.8 mi, 118°
• Lengshuitan
64.6 km =40.1 mi, 232°
• Yongfeng
73.8 km =45.9 mi, 5°
• Lianyuan
111.3 km =69.2 mi, 336°
• Wuxi
32.1 km =19.9 mi, 230°
• Bojia
36.3 km =22.6 mi, 202°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016