Anything remaining along the trajectory of a meteor or fireball after the head of the object has passed. The train may consist of light, dust, vapour, or ionized gas. The faintly glowing train of ionization left along the path of a bright meteor is generally termed a wake if it glows for a second or less, or a persistent train if the duration is longer. A train may be bent and broken up by winds in the upper atmosphere. Meteorite-dropping fireballs often leave a train of fine dust.
Subjects: Astronomy and Astrophysics.