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Hubble Uncovers the Farthest Star Ever Seen 5nvklj





Hubble Uncovers the Farthest Star Ever Seen 9tpt39

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Hubble Uncovers the Farthest Star Ever Seen

Dragon
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Hubble Uncovers the Farthest Star Ever Seen Empty Hubble Uncovers the Farthest Star Ever Seen

Post by Dragon Tue Apr 03, 2018 11:20 pm

The discovery of Icarus through gravitational lensing has initiated a new way for astronomers to study individual stars in distant galaxies. These observations provide a rare, detailed look at how stars evolve, especially the most luminous stars.

“This is the first time we’re seeing a magnified, individual star,” explained former University of California at Berkeley postdoc and study leader Patrick Kelly now of the University of Minnesota, Twin Cities. “You can see individual galaxies out there, but this star is at least 100 times farther away than the next individual star we can study, except for supernova explosions.”

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Hubble Uncovers the Farthest Star Ever Seen Empty Re: Hubble Uncovers the Farthest Star Ever Seen

Post by Dragon Tue Apr 03, 2018 11:22 pm

Hubble Uncovers the Farthest Star Ever Seen Hubbleicarusimage1stscihp1813am2000x1333
Credits: NASA, ESA, and P. Kelly (University of Minnesota)

Icarus, whose official name is MACS J1149+2223 Lensed Star 1, is the farthest individual star ever seen. It is only visible because it is being magnified by the gravity of a massive galaxy cluster, located about 5 billion light-years from Earth. Called MACS J1149+2223, this cluster, shown at left, sits between Earth and the galaxy that contains the distant star. The panels at the right show the view in 2011, without Icarus visible, compared with the star's brightening in 2016.

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Hubble Uncovers the Farthest Star Ever Seen Empty Re: Hubble Uncovers the Farthest Star Ever Seen

Post by Dragon Tue Apr 03, 2018 11:23 pm



When NASA's James Webb Space Telescope is launched, astronomers expect to find many more stars like Icarus.

 

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