“There was tremendous concern in the marketplace that there was going to be huge crowding when we opened Galaxy’s Edge.” Iger said. But, when you see a photo of a spiral galaxy, a good guess is that the arms trail the direction of rotation.Disneyland attendance drops despite launch of Star Wars: Galaxy’s Edge – Orange County Register The only way to be sure of the rotational direction is to measure the motions of stars or gas in a galaxy, which requires more than just an image. Galaxies that have recently merged with or been disturbed by another galaxy can sometimes rotate with their spiral arms leading. But there have been some recent observations that suggest not all galaxies rotate with their arms trailing. In most cases, spiral galaxies spin with their arms trailing the direction of rotation. This finding was recently confirmed by a group of citizen scientists who looked at thousands of images of spiral galaxies and determined that half looked to be rotating clockwise and the other half counterclockwise. By extension, galaxies shouldn’t have a preferred direction of spin from our perspective. This stems from the idea that we live in an “isotropic” universe, which means that the universe looks roughly the same in every direction. But if viewed from the other side, it looks to be spinning counterclockwise.Īstronomers have long thought that about half of all galaxies should be rotating in one direction, and half in the other. When you look at a spinning wheel from one side, it looks like it’s spinning clockwise. As an analogy, consider a spinning bicycle wheel. The direction a galaxy rotates depends on your perspective. About half of all spiral galaxies appear to be rotating clockwise and the other half counterclockwise.
0 kommentar(er)
