Night Light of Rockwall (Texas) from space (United States) Src. Average luminocity for 10x10km area is 63.7326% and for 50x50km: 48.9388%.
Square area 10x10 km:
 9.52%
 9.52% 12.64%
 12.64% 4.76%
 4.76% 10.44%
 10.44% 11.54%
 11.54% 18.86%
 18.86% 14.29%
 14.29% 15.75%
 15.75% 2.2%
 2.2% 0%
 0% 0%
 0%Square area 50x50 km:
 10.71%
 10.71% 11.2%
 11.2% 8.04%
 8.04% 6.59%
 6.59% 7.08%
 7.08% 5.72%
 5.72% 4.44%
 4.44% 7.32%
 7.32% 5.61%
 5.61% 10.08%
 10.08% 23.21%
 23.21%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
33° 31' 9.8" North, 97° 9' 46.2" West
32° 55' 52.4" North, 96° 27' 35" West
32° 20' 20.8" North, 95° 45' 23.7" West
Some cities around Rockwall sort by population:
• Garland
		16.9 km =10.5 mi,  262°
262°
• Rowlett
		10.2 km =6.3 mi,  252°
252°
• Wylie
		11.9 km =7.4 mi,  321°
321°
• Sachse
		13.6 km =8.5 mi,  291°
291°
• Murphy
		17.1 km =10.6 mi,  303°
303°
• Royse City
		12.8 km =8 mi,  67°
67°
• Fate
		7.4 km =4.6 mi,  81°
81°
• Heath
		10.6 km =6.6 mi,  187°
187°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016