Night Light of Vaniyambadi (Tamil Nadu) from space (India) Src. Average luminocity for 10x10km area is 47.7965% and for 50x50km: 13.1453%.
Square area 10x10 km:
 3.03%
 8.66%
 6.49%
 4.76%
 9.09%
 10.39%
 12.99%
 8.87%
 17.75%
 17.1%
 0.87%Square area 50x50 km:
 0.25%
 1.41%
 1.38%
 0.87%
 1.69%
 2.46%
 3.93%
 4.24%
 5.49%
 11.72%
 66.55%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
13° 21' 59.9" North, 77° 55' 1.3" East
12° 40' 53.8" North, 78° 37' 12.5" East
11° 59' 41.1" North, 79° 19' 23.8" East
Some cities around Vaniyambadi sort by population:
• Ambur
		16.1 km =10 mi, 
40°
• Gudiyatham
		40.3 km =25 mi, 
43°
• Peranāmpattu
		30.1 km =18.7 mi, 
20°
• Jalārpet
		13.4 km =8.3 mi, 
202°
• Kuppam
		31.1 km =19.3 mi, 
284°
• Alangāyam
		15.8 km =9.8 mi, 
114°
• Odugattūr
		30.1 km =18.7 mi, 
71°
• Kunnattūr
		39 km =24.2 mi, 
197°
Sources (retrieved 2019-11-25):
» NASA, Earths city lights 1995
» NASA city lights 2003
» Earth at Night: Flat Maps 2012, 2016