Night Light of Amherst (Massachusetts) from space (United States) Src. Average luminocity for 10x10km area is 24.3508% and for 50x50km: 12.1405%.
Square area 10x10 km:
 3.17%
 3.33%
 3.65%
 2.7%
 4.13%
 1.9%
 4.29%
 1.43%
 3.81%
 33.02%
 38.57%Square area 50x50 km:
 1.59%
 1.82%
 1.52%
 1.72%
 1.62%
 1.6%
 1.84%
 2.17%
 2.89%
 7.89%
 75.34%Clear (daylight) street map image can be seen on geolist.org.
Map coordinates:
42° 53' 4.5" North, 73° 13' 17.9" West
42° 22' 2" North, 72° 31' 6.7" West
41° 50' 44.1" North, 71° 48' 55.4" West
Some cities around Amherst sort by population:
• North Chicopee
		21.5 km =13.4 mi, 
198°
• Holyoke
		19.8 km =12.3 mi, 
203°
• Northampton
		11.1 km =6.9 mi, 
245°
• South Hadley
		12.9 km =8 mi, 
200°
• Easthampton
		16.7 km =10.4 mi, 
227°
• Montague
		18.8 km =11.7 mi, 
355°
• North Amherst
		4.9 km =3 mi, 
348°
• Southampton
		23.2 km =14.4 mi, 
228°
Sources (retrieved 2019-11-25):
» Earth at Night: Flat Maps 2012, 2016