When stars start receding?

When stars start receding, it typically refers to their movement away from an observer or a specific point in space, often due to the expansion of the universe. This phenomenon is observed through the redshift effect, where the light from receding stars shifts to longer wavelengths. The process is primarily driven by cosmic expansion, as outlined by Hubble's Law, which states that the farther away a galaxy is, the faster it appears to be moving away. This receding motion provides critical evidence for the Big Bang theory and the ongoing expansion of the universe.