Fomalhaut, a star 25 light years away, has an asteroid belt that's twice as wide as the distance from the sun to Neptune
“We thought that it would have a narrow asteroid belt like our own solar system, but it turns out it’s very different,” says Gáspár.is about 1.5 astronomical units across – 1 AU is the distance between Earth and the sun – while Fomalhaut’s inner asteroid belt stretches from about 7 AU from the star to about 80 AU out.
That is about 10 times broader than expected.There also appears to be a sort of intermediate asteroid belt between the inner belt and the outer disc, but it is tilted by about 23 degrees from the plane of the other two belts. This dense strip of debris solves a long-held mystery about Fomalhaut – the source of the material that makes up its famous dust cloud, Fomalhaut b. This was
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