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Weird metal-rich star catapulted from the galaxy

6 Aug 2021, 18:14 UTC
Weird metal-rich star catapulted from the galaxy
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Artist’s concept of the core of a star hurtling outward as shrapnel from a supernova explosion. Astronomers think it’s a metal-rich star catapulted from our galaxy. Image via JJ Hermes (@jotajotahermes) on Twitter.
Metal-rich star catapulted out
A metal-rich star, believed to be the shrapnel from a supernova, is racing out of our galaxy at a scorching speed. The star is named LP 40-365. It lies just 2,000 light-years away in the Milky Way. And it’s relentlessly increasing its distance from Earth. Astronomer J.J. Hermes of Boston University said in a statement:
This star is moving so fast that it’s almost certainly leaving the galaxy … [it’s] moving almost 2 million miles an hour [3.2 million kph].
That’s in contrast to our sun’s motion through space, which is about 448,000 miles per hour (720,000 kph). Boston University released information about this star earlier this summer (July 8, 2021). The scientists’ published study appeared on June 7 in the peer-reviewed Astrophysical Journal Letters.
Supernova shrapnel
This oddball star is one of an elite group of fast-moving remnants of stars. A chunk of the star’s core apparently survived the supernova explosion intact. This core was shot out as shrapnel into space by ...

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