-The video camera is set to long exposure when recording, then the video is played with with very low fps rate, maybe frame by frame, or they created
a slideshow of images, so we get those dinstinct symbols we see, instead of a wiggling "snake" that we would see if the video was playing
fluidly:
www.youtube.com...
www.youtube.com...
www.youtube.com... -bit unrelated, but looks very nice, you can see what people are capable of with this
effect
2.
-The audio is either separately recorded, then added to the video/slideshow. OR
-The audio was recorded at the scene at the same time along the video, then it was ripped from the video. They then created a slideshow from images
taken from the video, that matches the lenght of the audio channel, then the two were put together.
www.youtube.com... (in this case, the music is the added audio channel, much like the backgrond noise and chatter in the OP's
video)
3.
-We cannot be sure if we're indeed looking at a night sky. It could be a dark place with someone standing in the middle drawing the lights.
www.youtube.com...
-If it was shot outside, looking at the night sky, there has to be a real object there, which emits some kind of light: a plane, a helicopter, or
something else. (the background noise does sound like a plane , but I'm no expert)
But in this case, the camera had to be moving, simply holding it in the hand is enough, but it was definitely NOT set down firmly in place.