You could also get the same effect with a regular tripod, time-lapse photography and a rotation effect. The sky would look normal though, not like in this. http

You could also get the same effect with a regular tripod, time-lapse photography and a rotation effect. The sky would look normal though, not like in this. https://en.wikipedia.org/wiki/Time-lapse_photography https://en.wikipedia.org/wiki/Time-lapse_photography