Zones in the earth's magnetosphere where charged particles are confined by the earth's magnetic field. There are two main belts, one centered at an altitude of roughly 1.5 times the earth' radius, and the other between 4.5 and 6.0 times the earth's radius.
At least two doughnut-shaped regions of magnetically trapped charged particles high above Earth's atmosphere.
Doughnut-shaped regions of magnetically trapped charged particles high above the Earth's atmosphere. [More Info
Radiation zones of charged particles that surround the Earth. The shape of the Van Allen belts is determined by the Earth's magnetic field.
Two ring-shaped regions that girdle the Earth's equator in which electrically charged particles are trapped by the Earth's magnetic field. See South Atlantic Anomaly and radiation belts. more
two belts of charged particles from the solar wind that have been trapped by Earthâ€(tm)s magnetic field above Earthâ€(tm)s atmosphere
Zones of intense radiation surrounding Earth's mid-section within the magnetosphere, caused by charged particles trapped in the Earth's magnetic force field (magnetosphere).
The Van Allen radiation belts are two doughnut-shaped belts of ionized gas (plasma) that circle the Earth. The belts are are caused by the interaction between the Earth's magnetic field and the solar wind (stream of ions, electrically charged particles, that are given emitted by the sun). The particles ( plasma) is trapped by the Earth's magnetosphere. When stray particles from these belts collide with air, they emit light, causing an aurora. Some Variable Stars Type of Variable Magnitude Range Period (days) Eta Auilae Cepheid 3.5-4.4 7.2 R Carinae Mira 3.9-10.5 308.7 R Centauri Mira 5.3-11.8 546.2 Delta Cephei Cepheid 3.5-4.4 5.4 Mira (Omicron Ceti) Mira 3.4-9.3 332.0 Zeta Geminorum Cepheid 3.7-4.2 10.2 Delta Librae Eclipsing binary 4.9-5.9 2.3 Algol (Beta Persei) Eclipsing binary 2.1-3.4 2.9