This video explains how slow neptune revolves and how slow the orbit is. This video is speed up because if it is not it would be years long.
This is neptunes size compared to earth is 15,299 miles.
The second last line is Neptune revolving it is so wide because it is so long.
This is a diagram of Neptune number 1 is the outside layer of neptune and number 4 is the core of neptune.
Cool cosmos,space.com,planets for kids.