how many miles up is the van allen belt
Van Allen radiation belt The term Van Allen belts refers specifically to the radiation belts surrounding Earth; however, similar radiation belts have been discovered around other planets. The Sun does not support long-term radiation belts, as it lacks a stable, global, dipole field. The Earth's atmosphere limits the belts' particles to regions above 200–1,000 km,[5] (124–620 miles) while the belts do not extend past 8 Earth radii RE.[5] The belts are confined to a volume which extends about 65°[5] on either side of the celestial equator.