there are 2 ways to capture Meteor
1.take it as a time lapse video.
this is very simple! you just need to set a resonable parameter and start capture a video in SharpCap or Firecapture.just don't forget to do a "dark subtract" before that.
I usually set the gain to 50-60, exposure 5s to take such a video.
2. use some meteor capture software to do this job
such like HandyAvi. so you don't need to find the meteor yourself in a very long video!