Night Light of Baiyin (Gansu) from space (China) Src. Average luminocity for 10x10km area is 56.1484% and for 50x50km: 3.4927%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
37° 6' 35.1" North, 103° 28' 1.6" East
36° 32' 49.1" North, 104° 10' 12.8" East
35° 58' 48.1" North, 104° 52' 24.1" East
Some cities around Baiyin sort by population:
• Tianshui
260.9 km =162.1 mi, 146°
• Lanzhou
62 km =38.5 mi, 208°
• Xining
215.6 km =134 mi, 272°
• Wuwei
205.1 km =127.4 mi, 318°
• Linxia Chengguanzhen
136.3 km =84.7 mi, 219°
• Pingliang
252.4 km =156.8 mi, 116°
• Beidao
269.6 km =167.5 mi, 144°
• Mawu
245.2 km =152.4 mi, 164°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016