Night Light of Annāmalainagar (Tamil Nadu) from space (India) Src. Average luminocity for 10x10km area is 25.7771% and for 50x50km: 10.5997%.
Square area 10x10 km:
 1.3%
 4.76%
 4.11%
 2.81%
 2.16%
 3.9%
 3.46%
 5.19%
 8.23%
 29.44%
 34.63%Square area 50x50 km:
 0.29%
 1.33%
 1.44%
 1.55%
 1.02%
 2.05%
 2.18%
 2.21%
 3.5%
 6.97%
 77.47%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
12° 5' 18.2" North, 79° 1' 48.8" East
11° 24' 0" North, 79° 43' 60" East
10° 42' 35.7" North, 80° 26' 11.3" East
Some cities around Annāmalainagar sort by population:
• Mayiladuthurai
		34.1 km =21.2 mi, 
194°
• Chidambaram
		4.6 km =2.9 mi, 
269°
• Sīrkāzhi
		18.1 km =11.2 mi, 
179°
• Kurinjippādi
		22.8 km =14.2 mi, 
317°
• Kīl Bhuvanagiri
		10.5 km =6.5 mi, 
296°
• Tirumullaivāsal
		21.1 km =13.1 mi, 
147°
• Srīmushnam
		35.9 km =22.3 mi, 
270°
• Ālappākkam
		22.2 km =13.8 mi, 
355°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016