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Which is the biggest star?

NML Cygni or V1489 Cygni is a red hypergiant star and the largest star currently known, at about 1,650 times the Sun's radius (equal to 7.67 astronomical units), thus a diameter of about 2,295,000,000 kilometres (1.426×109 mi).

Also refer http://en.wikipedia.org/wiki/NML_Cygni


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