太強了
https://www.facebook.com/MoophzDotCom/videos/243725213134814/12/08/2018: fireball and afterglow during the nights of the perseids recorded between 4:23 and 4:42AM, the bright fireball burnt at 4:24, leaving a trail for more than 20 minutes.
Bright meteors, particularly fireballs, often leave an “afterglow” along their trail, called a train. When a meteoroid enters the Earth’s atmosphere, its surface atoms sublimate and are turned into ions through collisions with atmospheric particles, which will themselves be ionized simultaneously, resulting ions of both the meteoroid and the atmosphere present along the trajectory appear bright against the night sky.
That being said, can you spot Andromeda galaxy?
This is a 20 minutes combined in 6 seconds. The afterglow remained for more than 15 mins
觀星論壇 
