What makes stars rotate on their axis?

The spin of such cosmic objects is described by a conserved quantity called angular momentum, which accounts for both the speed of the rotating mass and its distance from the spin axis. read more

The rotation is a remnant of the internal movements of the part of the gas cloud that gave birth to the star. Collapse, generally spoken, is a chaotic process. After some time, the collapsing cloud will become a rotating disc, rotating in the prevailing direction of movement. read more

Stars and planets form in the collapse of huge clouds of interstellar gas and dust. The material in these clouds is in constant motion, and the clouds themselves are in motion, orbiting in the aggregate gravity of the galaxy. read more