Night Light of Sunnyvale (Texas) from space (United States) Src. Average luminocity for 10x10km area is 69.3706% and for 50x50km: 63.4625%.
Square area 10x10 km:
 10.31%
 10.31% 13.11%
 13.11% 13.81%
 13.81% 13.11%
 13.11% 16.26%
 16.26% 12.24%
 12.24% 8.22%
 8.22% 11.54%
 11.54% 1.4%
 1.4% 0%
 0% 0%
 0%Square area 50x50 km:
 18.98%
 18.98% 14.71%
 14.71% 8.51%
 8.51% 7.73%
 7.73% 8.53%
 8.53% 6.47%
 6.47% 5.27%
 5.27% 7.51%
 7.51% 6.21%
 6.21% 10.65%
 10.65% 5.42%
 5.42%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
33° 23' 8.2" North, 97° 15' 50.2" West
32° 47' 47.5" North, 96° 33' 39" West
32° 12' 12.7" North, 95° 51' 27.7" West
Some cities around Sunnyvale sort by population:
• Garland
		14.8 km =9.2 mi,  330°
330°
• Mesquite
		4.9 km =3 mi,  227°
227°
• Rowlett
		11.8 km =7.3 mi,  358°
358°
• Rockwall
		17.7 km =11 mi,  32°
32°
• Balch Springs
		9.5 km =5.9 mi,  217°
217°
• Forney
		9.9 km =6.2 mi,  122°
122°
• Seagoville
		17.6 km =10.9 mi,  173°
173°
• Heath
		9.2 km =5.7 mi,  60°
60°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016