The rotational speed of an object, such as a neutron star, is not directly related to the speed of light. It is important to understand that the speed of light represents the fastest speed at which information or matter can travel through space.
When we talk about the rotation of a neutron star, we are referring to its angular velocity, which is measured in terms of rotations per unit of time (e.g., rotations per second). The surface of a neutron star can rotate extremely rapidly due to the conservation of angular momentum.
While the surface of a neutron star can rotate at incredibly high speeds, it does not violate the speed of light because the rotation is a property of the star itself and not a movement of matter or information across space at speeds exceeding light. The rotational speed of a neutron star refers to the rotation of the entire star as a unified object, not the speed of individual particles or photons.
In the case of light traveling around the Earth multiple times in a second, it is important to note that light is an electromagnetic wave that does not have mass and can propagate through a vacuum at a constant speed of approximately 299,792 kilometers per second (or about 186,282 miles per second) in a vacuum. Therefore, the speed of light is unrelated to the rotational speed of objects like neutron stars.
In summary, the rotational speed of a neutron star does not violate the speed of light because it is a property of the star itself and not a movement of matter or information exceeding the speed of light. The speed of light represents the fastest speed at which information or matter can travel through space.