Night Light of Vellānūr (Tamil Nadu) from space (India) Src. Average luminocity for 10x10km area is 83.5325% and for 50x50km: 61.2928%.
Square area 10x10 km:
 7.14%
 23.59%
 42.21%
 14.5%
 10.82%
 1.73%
 0%
 0%
 0%
 0%
 0%Square area 50x50 km:
 14.7%
 13.22%
 14.38%
 5.72%
 7.31%
 9.51%
 6.84%
 5.74%
 5.62%
 6.42%
 10.54%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
13° 50' 30.2" North, 79° 24' 11.6" East
13° 9' 28.9" North, 80° 6' 22.8" East
12° 28' 20.7" North, 80° 48' 34.1" East
Some cities around Vellānūr sort by population:
• Ambattūr
		8.9 km =5.5 mi, 
138°
• Āvadi
		4.8 km =3 mi, 
175°
• Poonamalle
		12.2 km =7.6 mi, 
175°
• Porur
		14.7 km =9.1 mi, 
157°
• Manali
		17.4 km =10.8 mi, 
86°
• Tinnanūr
		9.8 km =6.1 mi, 
240°
• Nāravārikuppam
		9.3 km =5.8 mi, 
66°
• Chinnasekkadu
		16.3 km =10.1 mi, 
88°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016