Night Light of Deerlijk (Flanders) from space (Belgium) Src. Average luminocity for 10x10km area is 67.5882% and for 50x50km: 40.4441%.
Square area 10x10 km:
 11.34%
 14.15%
 12.04%
 8.4%
 10.64%
 17.23%
 13.45%
 8.26%
 4.34%
 0.14%
 0%Square area 50x50 km:
 8.97%
 6.91%
 3.58%
 4.56%
 5.32%
 6.48%
 5.8%
 6.91%
 12.74%
 17.87%
 20.86%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
51° 17' 42.5" North, 2° 39' 3.7" East
50° 51' 12.1" North, 3° 21' 15" East
50° 24' 26.5" North, 4° 3' 26.2" East
Some cities around Deerlijk sort by population:
• Kortrijk
		6.9 km =4.3 mi, 
245°
• Waregem
		6.5 km =4 mi, 
52°
• Harelbeke
		3.1 km =1.9 mi, 
270°
• Zwevegem
		4.7 km =2.9 mi, 
193°
• Anzegem
		8.9 km =5.5 mi, 
101°
• Kuurne
		5 km =3.1 mi, 
267°
• Wielsbeke
		5.3 km =3.3 mi, 
9°
• Oostrozebeke
		7.6 km =4.7 mi, 
351°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016