Night Light of Roskilde (Zealand) from space (Denmark) Src. Average luminocity for 10x10km area is 29.3732% and for 50x50km: 15.0741%.
Square area 10x10 km:
 5.02%
 5.38%
 5.26%
 3.11%
 2.87%
 1.91%
 2.03%
 0.24%
 2.15%
 45.57%
 26.44%Square area 50x50 km:
 3.01%
 3.4%
 1.77%
 1.45%
 1.6%
 1.38%
 1.45%
 1.77%
 3.22%
 9.91%
 71.06%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
56° 2' 10.8" North, 11° 22' 38" East
55° 38' 29.5" North, 12° 4' 49.3" East
55° 14' 33.6" North, 12° 47' 0.5" East
Some cities around Roskilde sort by population:
• Greve
		15.2 km =9.4 mi, 
115°
• Taastrup
		13.9 km =8.6 mi, 
86°
• Stenløse
		15.9 km =9.9 mi, 
27°
• Ishøj
		17.3 km =10.7 mi, 
99°
• Solrød Strand
		15 km =9.3 mi, 
143°
• Fløng
		7.1 km =4.4 mi, 
71°
• Jyllinge
		12.5 km =7.8 mi, 
6°
• Tune
		7.8 km =4.8 mi, 
133°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016