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The largest stars would also be the brightest and that would put them near the top of the Hertzprung Russell diagram.

The Sky Catalogue 2000.0 lists 50,071 stars of brightness down to magnitude 8.0. The brightest star is Rho Cassiopeiae with an absolute magnitude of -9.5, which is about 400,000 times more luminous than the Sun, and its spectrum is G2 like the Sun.

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10y ago

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