| Solar System Scratchpad|
- Sun/Interplanetary Magnetic Field - The portion of the Sun's magnetic field that extends into interplanetary space. Interacts with the magnetic fields of its planets, terminating at a planet's Magnetopause, atmosphere, or surface. Solar wind is propelled along its field lines.
- Sun/Solar Wind - A stream of electrically charged particles that stream out from the Sun at 250 to 370 miles per second. They strike planetary surfaces unless protected by a magnetosphere or atmosphere. A thin plasma.