In frame three an object appears below the big star on the right. I have seen numerous objects like these. Are they asteroids?
nop, here you can find help http://talk.asteroidzoo.org/?_ga=1.220957528.1567970753.1436225632#/boards/BAZ0000001/discussions/DAZ00000bi
YowieMark. That's a hot pixel, produced by the camera.