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Lynx Arc

In a young galaxy at the other side of the universe lies this super stellar cluster of extreme blue stars of a kind that today doesn't exist anymore. Only through the deficiency of heavy elements in the early universe such stars could form. The supercluster contains several million stars of which the biggest are estimated to have 140 to 260 solar masses and a surface temperature of 120 000 kelvin.

The light is multiplied by a galaxy cluster in the foreground which works as a gravitational lens. Otherwise the Lynx Arc wouldn't be detectable. Caused by the Doppler effect the light of the blue stars reaches us in red. The redshift is 3.357.

Constellation: Lynx
Distance: 12 billion light-years

Back: List of big and giant stars part 2
    Lynx Arc
The red spot in the middle is the Lynx Arc, next to it are galaxies from the galaxy cluster in the foreground.
Photo: ESA, NASA, Robert A.E. Fosbury (European Space Agency/Space Telescope-European Coordinating Facility, Germany) and NOAO

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