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Why A Comet Has A Tail?, Whats causing it?| Badpenny |
Posted: Mar 7 2008, 05:27 PM
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Newbie  Group: Members Posts: 31 Joined: 6-October 07 Positive Feedback: 25% Feedback Score: -5  |
If a massive object like a giant red star is traveling through space and is loosing surface material, whats causing it to lose its surface material? Isn't gravity strong enough to hold the surface of the star together why it travels?
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| Latrosicarius |
Posted: Mar 7 2008, 06:17 PM
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Advanced Member Group: Members Posts: 998 Joined: 10-November 05 Positive Feedback: 76% Feedback Score: 18 |
That's not why a comet has a tail.
A comet's tail is not "behind" it. The tail is like it's shadow. It's always pointing in the opposite direction of the star it is near by. The solar wind and radiation pressure from the nearby star causes a tail to form from gas and dust coming off of the comet. Yes, a star and other object will stay together while it travels. The tail only starts to appear when a comet approaches a star. -------------------- Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.
– Albert Einstein In the period that Einstein was active as a professor, one of his students came to him and said: "The questions of this year's exam are the same as last years!" "True," Einstein said, "but this year all answers are different." |
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