Galaxy's gigantic star discovered

Canadian scientists have discovered the hugest star so far in the Galaxy. Researchers from Montreal University in alliance with an international team of astrophysicists; have found that the super-large star has a weight 116 times that of the sun.The researchers has discovered the super-massive star in the company of yet another massive star whose mass is also 89 times that of the sun.These two massive stars form a binary system, with the lighter star waltzing around its heavier companion. They have a rotation period of 3.77 days.

Located in the massive star cluster NGC 3603 of the Milky Way, the super-massive two-star binary system has been named A1, a university statement said. NGC 3603 (entry number 3603 of the New General Catalogue) is a giant cloud of gas and plasma which is several hundred light years across and lies in the Constellation Carina in the Milky Way. It is about 20,000 light years from the sun.

The statement said the masses of these massive stars were calculated by a combination of observations made with the SINFONI (spectrometer for infra-red faint field imaging) instrument on the Very Large Telescope at the European Organization for Astronomical Research centre in Chile, and infrared images coming from the Hubble Space Telescope. The two stars are so massive and bright that the light they transmit shows characteristics that only Wolf-Rayet stars possess.

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