Star trail is a Houdini digital asset (HDA) , that let you create a design and motion graphics similar to those images on my behance:
https://www.behance.net/gallery/90828223/Visual-Experiment
It's using the new sweep in houdini 18 , but you can use it on older version of houdini and replace the sweep with an older one or use polywire .it's also work on the other 3D app like cinema4d - max - maya - unreal - unity .. etc via houdini engine plugin .