Night Light of Yigou (Henan) from space (China) Src. Average luminocity for 10x10km area is 17.6993% and for 50x50km: 12.4088%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
36° 22' 46.3" North, 113° 36' 48.8" East
35° 48' 41" North, 114° 19' 0" East
35° 14' 20.9" North, 115° 1' 11.3" East
Some cities around Yigou sort by population:
• Anyang
32.2 km =20 mi, 10°
• Xinxiang
83.3 km =51.8 mi, 214°
• Puyang Chengguanzhen
64 km =39.8 mi, 100°
• Hebi
14.8 km =9.2 mi, 311°
• Linshui
68.9 km =42.8 mi, 351°
• Hecun
82.4 km =51.2 mi, 347°
• Pengcheng
70.2 km =43.6 mi, 349°
• Daokou
32.4 km =20.1 mi, 148°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016