Night Light of Idstein (Hesse) from space (Germany) Src. Average luminocity for 10x10km area is 5.3957% and for 50x50km: 16.8455%.
Square area 10x10 km:
 0%
 0.94%
 1.2%
 1.07%
 0%
 0%
 0.53%
 1.34%
 1.34%
 0.94%
 92.65%Square area 50x50 km:
 3.6%
 3.67%
 1.38%
 1.6%
 1.77%
 1.83%
 2.73%
 2.87%
 4.73%
 7.06%
 68.76%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
50° 39' 55.9" North, 7° 33' 49.2" East
50° 13' 3.8" North, 8° 16' 0.4" East
49° 45' 56.5" North, 8° 58' 11.7" East
Some cities around Idstein sort by population:
• Wiesbaden
		15.1 km =9.4 mi, 
184°
• Taunusstein
		11.1 km =6.9 mi, 
227°
• Niedernhausen
		6.9 km =4.3 mi, 
151°
• Bad Camberg
		8.8 km =5.5 mi, 
1°
• Eppstein
		12.2 km =7.6 mi, 
133°
• Schmitten
		14.1 km =8.8 mi, 
67°
• Waldems
		5.9 km =3.7 mi, 
52°
• Glashütten
		9.5 km =5.9 mi, 
90°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016