Saturday, June 9, 2007

Most massive star discovered

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The most massive star known in the universe has been discovered and "weighed." The star, part of a binary system, topped the scales at 114 times the mass of the sun.

The newly weighed star, known simply as A1, is the brightest hot star at the heart of a giant, but dense, young star cluster called NGC 3603, which lies 20,000 light-years from Earth. The star's companion has a mass 84 times that of the sun.

These massive stars were "weighed" by inspecting their orbits with the Very Large Telescope and combining that data with eclipses observed by the Hubble Space Telescope.

Source : Space




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