Night Light of Gampengrejo (East Java) from space (Indonesia) Src. Average luminocity for 10x10km area is 51.0145% and for 50x50km: 17.7135%.
Square area 10x10 km:
 2.69%
 9.71%
 5.99%
 7.85%
 8.88%
 7.85%
 20.66%
 15.29%
 8.06%
 13.02%
 0%Square area 50x50 km:
 0.34%
 2.18%
 1.47%
 2.12%
 2.76%
 2.3%
 5.08%
 6.13%
 7.15%
 15.88%
 54.6%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
7° 4' 9.9" South, 111° 18' 48.8" East
7° 46' 0" South, 112° 1' 0" East
8° 27' 45.9" South, 112° 43' 11.3" East
Some cities around Gampengrejo sort by population:
• Kediri
		5.6 km =3.5 mi, 
180°
• Jombang
		34.2 km =21.3 mi, 
44°
• Kedungwaru
		35.1 km =21.8 mi, 
198°
• Nganjuk
		21.9 km =13.6 mi, 
325°
• Kertosono
		22.4 km =13.9 mi, 
24°
• Pare
		20 km =12.4 mi, 
90°
• Diwek
		31.5 km =19.6 mi, 
48°
• Ngoro
		28.1 km =17.5 mi, 
70°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016