magnetotail
Noun
Meaning
magnetotail (plural magnetotails)
(astronomy) The long, trailing part of a magnetosphere on the side of a planet furthest from the sun
Examples
Also, NASA scientists have suggested that Earth's magnetotail might cause "dust storms" on the Moon by creating a potential difference between the day side and the night side.
Bursts of energetic particles in the planet's magnetotail indicate a dynamic quality to the planet's magnetosphere.
The width of the magnetosphere abreast of Earth, is typically 190,000 km (30 Re), and on the night side a long "magnetotail" of stretched field lines extends to great distances (> 200 Re).
In the magnetotail, however, particle trajectories seem constantly to reshuffle, probably when the particles cross the very weak magnetic field near the equator.
Uranus's magnetotail trails behind it into space for millions of kilometres and is twisted by its sideways rotation into a long corkscrew.