Night Light of Qionghu (Hunan) from space (China) Src. Average luminocity for 10x10km area is 4.9053% and for 50x50km: 0.7542%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
29° 27' 16.9" North, 111° 40' 15.1" East
28° 50' 26.2" North, 112° 22' 26.4" East
28° 13' 22.4" North, 113° 4' 37.6" East
Some cities around Qionghu sort by population:
• Changsha
92.2 km =57.3 mi, 140°
• Yueyang
91.8 km =57 mi, 49°
• Changde
71.5 km =44.4 mi, 288°
• Yiyang
28.3 km =17.6 mi, 189°
• Anxiang
65.9 km =40.9 mi, 340°
• Wenxing
52.3 km =32.5 mi, 109°
• Yutan
67.3 km =41.8 mi, 164°
• Nanzhou
57.8 km =35.9 mi, 2°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016