Night Light of Rockville (Connecticut) from space (United States) Src. Average luminocity for 10x10km area is 37.8048% and for 50x50km: 29.8082%.
Square area 10x10 km:
 1.59%
 3.17%
 10.16%
 4.6%
 8.41%
 9.84%
 5.71%
 3.65%
 9.52%
 23.17%
 20.16%Square area 50x50 km:
 4.11%
 4.7%
 5.15%
 4.53%
 6.04%
 4.98%
 3.68%
 4.15%
 6.12%
 9.76%
 46.78%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
42° 23' 17.6" North, 73° 9' 9.6" West
41° 52' 0.3" North, 72° 26' 58.3" West
41° 20' 27.6" North, 71° 44' 47.1" West
Some cities around Rockville sort by population:
• East Hartford
		16.4 km =10.2 mi, 
235°
• Manchester
		11.7 km =7.3 mi, 
210°
• Windsor
		16.2 km =10.1 mi, 
264°
• South Windsor
		15 km =9.3 mi, 
251°
• Tolland
		6.7 km =4.2 mi, 
85°
• Ellington
		4.5 km =2.8 mi, 
337°
• Windsor Locks
		16.3 km =10.1 mi, 
295°
• Southwood Acres
		14.7 km =9.1 mi, 
316°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016