Night Light of Marseillan (Occitanie) from space (France) Src. Average luminocity for 10x10km area is 22.9206% and for 50x50km: 14.2854%.
Square area 10x10 km:
 2.22%
 4.92%
 2.06%
 2.54%
 1.75%
 1.9%
 2.06%
 1.11%
 12.7%
 28.73%
 40%Square area 50x50 km:
 1.58%
 3.16%
 1.76%
 1.31%
 1.52%
 0.93%
 1.06%
 1.21%
 4.96%
 15.29%
 67.21%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
43° 51' 55" North, 2° 49' 29.4" East
43° 21' 22.2" North, 3° 31' 40.6" East
42° 50' 34" North, 4° 13' 51.9" East
Some cities around Marseillan sort by population:
• Béziers
		25.4 km =15.8 mi, 
266°
• Sète
		14.3 km =8.9 mi, 
68°
• Agde
		6.6 km =4.1 mi, 
219°
• Frontignan
		20.9 km =13 mi, 
60°
• Pézenas
		14.2 km =8.8 mi, 
323°
• Mèze
		9.9 km =6.2 mi, 
39°
• Sérignan
		22 km =13.7 mi, 
247°
• Balaruc-les-Bains
		15.4 km =9.6 mi, 
51°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016