To my knowledge, this is the world’s first stitched spherical panorama of star trails in a vortex pattern! It has taken several months and many attempts to come up with a method of shooting and stitching it. I only had 7.5hrs from astronomic dusk to dawn with consistent darkness to shoot everything for this shot, including the two long exposure panoramas of the Milky Way and the ground that are the base layer for the image. The rest were all short exposures of fewer stars for the trails that are blended on top.
Explore the full panorama here: