Night Light of Biel/Bienne (Bern) from space (Switzerland) Src. Average luminocity for 10x10km area is 33.9787% and for 50x50km: 11.5106%.
Square area 10x10 km:
 6.11%
 8.52%
 3.13%
 2.56%
 3.98%
 2.98%
 1.85%
 3.98%
 13.21%
 31.11%
 22.59%Square area 50x50 km:
 1.21%
 1.88%
 1.14%
 1.1%
 1.34%
 1.57%
 1.71%
 1.72%
 2.99%
 9.38%
 75.97%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
47° 36' 47.8" North, 6° 32' 34.7" East
47° 8' 13.7" North, 7° 14' 45.9" East
46° 39' 24" North, 7° 56' 57.2" East
Some cities around Biel/Bienne sort by population:
• Grenchen
		12.9 km =8 mi, 
61°
• Lyss
		8.4 km =5.2 mi, 
146°
• Münchenbuchsee
		20.1 km =12.5 mi, 
129°
• Wohlen
		20.3 km =12.6 mi, 
155°
• Moutier
		18.2 km =11.3 mi, 
30°
• Lengnau
		10.5 km =6.5 mi, 
61°
• Nidau
		1.4 km =0.9 mi, 
198°
• Saint-Imier
		18.9 km =11.7 mi, 
275°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016