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+ - Astronomers detect and 'weigh' very young solar system

ogre7299 writes: Astronomers have found direct evidence of a forming proto-solar system and 'weighed' the forming star for the first time as repored in a recent Nature paper paywalled arXiv version and highlighted on space.com
Beneath a dusty disk of creation, a baby star's mass has been measured for the first time. The star, called L1527 IRS, is only one-fifth the mass of the sun, and is expected to keep growing as the swirling disk of matter surrounding it falls into its surface. Astronomers estimated the star formed around the same time that Neanderthals evolved on Earth: just 300,000 years ago.
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Astronomers detect and 'weigh' very young solar system

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