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Sirius

Alnilam

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alnilam star,epsilon orionis

Alnilam, Epsilon Orionis (ε Ori), is a bright blue supergiant star located approximately 1,180 light-years away in the constellation Orion. With an average apparent magnitude… Read More »Alnilam

Rigel

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rigel,beta orionis

Rigel, Beta Orionis (β Ori), is a blue-white supergiant star located approximately 848 light-years away in the constellation Orion, the Hunter. With an apparent magnitude of… Read More »Rigel

Betelgeuse

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betelgeuse star,alpha orionis

Betelgeuse, Alpha Orionis (α Ori), is a red supergiant star located in the constellation Orion, the Hunter.  It has an estimated radius about 764 times… Read More »Betelgeuse

Vega

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vega star,alpha lyrae

Vega, Alpha Lyrae (α Lyr), is a bright white main sequence star located 25.04 light-years from Earth in the northern constellation Lyra. With an apparent… Read More »Vega

Arcturus

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arcturus star,alpha bootis

Arcturus, Alpha Boötis (α Boo), is a red giant star located 36.7 light-years away in the northern constellation Boötes. With an apparent magnitude of -0.05,… Read More »Arcturus