Night Light of Ponneri (Tamil Nadu) from space (India) Src. Average luminocity for 10x10km area is 45.1343% and for 50x50km: 35.7436%.
Square area 10x10 km:
 0%
 5.58%
 9.71%
 4.75%
 4.34%
 18.18%
 11.36%
 15.29%
 11.98%
 15.5%
 3.31%Square area 50x50 km:
 4.06%
 6.12%
 9.41%
 3.65%
 4.92%
 7.42%
 5.04%
 5.22%
 7.02%
 12%
 35.14%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
14° 1' 18.7" North, 79° 29' 30.3" East
13° 20' 19.2" North, 80° 11' 41.5" East
12° 39' 12.9" North, 80° 53' 52.8" East
Some cities around Ponneri sort by population:
• Kattivākkam
		18.9 km =11.7 mi, 
135°
• Manali
		20.6 km =12.8 mi, 
157°
• Mīnjūr
		9.5 km =5.9 mi, 
133°
• Nāravārikuppam
		16.4 km =10.2 mi, 
183°
• Gummidipundi
		12.1 km =7.5 mi, 
309°
• Chinnasekkadu
		20.9 km =13 mi, 
161°
• Puduvāyal
		5.4 km =3.4 mi, 
259°
• Vellānūr
		22.3 km =13.9 mi, 
205°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016