Tag Archives: brightest star in the sky

Sirius-A is the Brightest Extrasolar Star Visible to the Naked Eye from Earth

Sirius-A is the brightest extrasolar star visible to the naked eye from Earth, being almost twice as bright as the second brightest, Canopus.  Sirius-A and Sirius-B combine to form a binary system and appear as one star to the naked eye, though the vast majority of luminosity to the naked eye comes from Sirius-A, Sirius-B being a white dwarf which […]

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