Night Light of Châteaulin (Brittany) from space (France) Src. Average luminocity for 10x10km area is 4.128% and for 50x50km: 2.7421%.
Square area 10x10 km:
Square area 50x50 km:
Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
48° 39' 47.9" North, 4° 47' 35.6" West
48° 11' 48.4" North, 4° 5' 24.3" West
47° 43' 33.4" North, 3° 23' 13.1" West
Some cities around Châteaulin sort by population:
• Quimper
21.9 km =13.6 mi, 181°
• Douarnenez
21 km =13 mi, 237°
• Landerneau
30.9 km =19.2 mi, 337°
• Plougastel-Daoulas
27.9 km =17.3 mi, 312°
• Le Relecq-Kerhuon
32.4 km =20.1 mi, 316°
• Crozon
30.1 km =18.7 mi, 280°
• Ergué-Gabéric
22.9 km =14.2 mi, 167°
• Rosporden
31.9 km =19.8 mi, 143°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016