Altair's observed rotation is about 11 hours, as opposed to Sol's rotational period of about a month. Given that Altair is a larger star than Sol (our sun), how do you impart a rotation on a body that size without destroying it?How do you get a star like Altair to spin at nearly 1% the speed of light?Altair must have been formed from a gas cloud that was spinning. Because angular momentum is conserved, a moderately fast moving cloud of dust could create a star that has an outlandish speed of rotation.
Edit: Think of spinning around on a chair with your arms out, and then pulling them in. It's the same idea.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment