[texas booster]

That is the view of the comet if you were to view it continuously from Earth.

The corkscrews are from the yearly progression of the Earth around the Sun.

All About Parallax

The small spirals show just how far away it used to be, and will eventually become.

[ZOOKER]

Thanks, I get it now. Each turn of the screw takes one year.
My time scale was off, I was thinking monthly instead of yearly, and wondering how the moon could make such a difference in perspective.