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Sirius

noun Sir·i·us \ ˈsir-ē-əs \

Definition of Sirius

: a star of the constellation Canis Major that is the brightest star in the heavens — called also Dog Star

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Origin and Etymology of sirius

Middle English, from Latin, from Greek Seirios

Other Astronomy Terms

gibbous, nadir, nebulous, penumbra, retrograde, sidereal, syzygy, wane, wax, zenith

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