Night Light of Boulogne-sur-Mer (Hauts-de-France) from space (France) Src. Average luminocity for 10x10km area is 41.5455% and for 50x50km: 5.3248%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
51° 10' 7.3" North, 0° 54' 38.9" East
50° 43' 32.6" North, 1° 36' 50.1" East
50° 16' 42.6" North, 2° 19' 1.4" East
Some cities around Boulogne-sur-Mer sort by population:
• Outreau
2.8 km =1.7 mi, 216°
• Saint-Martin-Boulogne
0.4 km =0.2 mi, 68°
• Étaples
22.7 km =14.1 mi, 176°
• Le Portel
3.5 km =2.2 mi, 230°
• Wimereux
4.9 km =3 mi, 357°
• Le Touquet-Paris-Plage
22.5 km =14 mi, 185°
• Desvres
16.8 km =10.4 mi, 112°
• Saint-Étienne-au-Mont
5.4 km =3.4 mi, 167°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016