Night Light of Heihe (Heilongjiang) from space (China) Src. Average luminocity for 10x10km area is 49.2507% and for 50x50km: 5.0407%.
Square area 10x10 km:
18.87%
13.36%
2.2%
2.75%
1.38%
4.27%
1.79%
6.47%
13.36%
22.31%
13.22%Square area 50x50 km:
1.36%
0.99%
0.23%
0.44%
0.39%
0.77%
0.49%
0.65%
1.55%
3.04%
90.09%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 41' 30" North, 126° 47' 13.3" East
50° 14' 38.9" North, 127° 29' 24.6" East
49° 47' 32.5" North, 128° 11' 35.8" East
Some cities around Heihe sort by population:
• Blagoveshchensk, RU
5.3 km =3.3 mi,
42°
• Belogorsk, RU
102.2 km =63.5 mi,
42°
• Seryshevo, RU
113.5 km =70.5 mi,
33°
• Yekaterinoslavka, RU
115.9 km =72 mi,
82°
• Tambovka, RU
43.5 km =27 mi,
111°
• Poyarkovo, RU
107.9 km =67 mi,
129°
• Srednebelaya, RU
58.9 km =36.6 mi,
38°
• Konstantinovka, RU
78.2 km =48.6 mi,
152°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016