MOUNTAIN VIEW, STONE COUNTY, ARKANSAS LAND FOR SALE: 1 - 15 of 277 listings. .5 Acres Allison, Stone County, Arkansas $14,900 Joins National Forest 1/2 acre campsite joining the National... Reach a larger audience and drive more leads by participating in the Showcase Property program. 1.
auroral oval. auroral oval. An oval-shaped region centered on the earth's magnetic pole in which auroral emissions occur.
The aurora borealis is also called the northern lights. The aurora borealis most often occurs from September to October and March to April. Its southern counterpart, aurora australis, has similar properties. The cause of the aurora is charged particles from the solar wind, accelerated by the Earth's magnetic field, colliding with atoms in the upper atmosphere causing them to glow as they release their surplus energy.