Night Light of Langenhorn (Hamburg) from space (Germany) Src. Average luminocity for 10x10km area is 61.3283% and for 50x50km: 24.556%.
Square area 10x10 km:
 12.37%
 14.77%
 5.93%
 7.83%
 13.64%
 6.44%
 7.83%
 9.6%
 15.53%
 6.06%
 0%Square area 50x50 km:
 7.26%
 5.53%
 1.68%
 2.13%
 2.73%
 2.29%
 2.74%
 2.45%
 4.47%
 11.45%
 57.28%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
54° 4' 52.3" North, 9° 18' 48.7" East
53° 40' 0" North, 10° 1' 0" East
53° 14' 52.9" North, 10° 43' 11.3" East
Some cities around Langenhorn sort by population:
• Norderstedt
		3.2 km =2 mi, 
311°
• Poppenbüttel
		4.6 km =2.9 mi, 
100°
• Hummelsbüttel
		2.7 km =1.7 mi, 
142°
• Ohlsdorf
		4.6 km =2.9 mi, 
167°
• Alsterdorf
		6.2 km =3.9 mi, 
182°
• Fuhlsbüttel
		3.6 km =2.2 mi, 
180°
• Wellingsbüttel
		5 km =3.1 mi, 
124°
• Lemsahl-Mellingstedt
		5.9 km =3.7 mi, 
63°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016