Night Light of Greenbelt (Maryland) from space (United States) Src. Average luminocity for 10x10km area is 84.3279% and for 50x50km: 74.5823%.
Square area 10x10 km:
 30.03%
 30.03% 23.86%
 23.86% 7.95%
 7.95% 14.61%
 14.61% 10.55%
 10.55% 9.74%
 9.74% 2.92%
 2.92% 0.32%
 0.32% 0%
 0% 0%
 0% 0%
 0%Square area 50x50 km:
 24.13%
 24.13% 19.37%
 19.37% 10.17%
 10.17% 11.47%
 11.47% 8.66%
 8.66% 7.07%
 7.07% 4.96%
 4.96% 4.4%
 4.4% 3.12%
 3.12% 3.42%
 3.42% 3.23%
 3.23%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
39° 32' 55.8" North, 77° 34' 43.2" West
39° 0' 16.4" North, 76° 52' 31.9" West
38° 27' 21.8" North, 76° 10' 20.7" West
Some cities around Greenbelt sort by population:
• College Park
		5.9 km =3.7 mi,  243°
243°
• Lanham-Seabrook
		4.5 km =2.8 mi,  152°
152°
• Seabrook
		4.8 km =3 mi,  148°
148°
• Beltsville
		4.4 km =2.7 mi,  320°
320°
• Glenn Dale
		5.1 km =3.2 mi,  111°
111°
• New Carrollton
		3.9 km =2.4 mi,  185°
185°
• Lanham
		4.1 km =2.5 mi,  165°
165°
• Goddard
		2.5 km =1.6 mi,  130°
130°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016