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HE1327-2326

The oldest known star originated shortly after the Big Bang. It contains only a 1/300 000 of the heavy elements compared to the Sun. Its age was discovered in April 2005. So it replaces HE0107-5240 as oldest and most metal depleted star.

Constellation: Hydra
Age: circa 13.6 billion years
Distance: max. 4000 light-years
Visual magnitude: 13.5
Mass: < 1 * Sun

Back: List of Special Stars part 2
    HE1327-2326
Photo: Subaru Telescope

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