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Arcturus

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

Antares

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antares star,alpha scorpii

Antares, Alpha Scorpii (α Sco) is a red supergiant star located at an approximate distance of 550 light years from Earth in the constellation Scorpius.… Read More »Antares

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

Procyon

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procyon star,alpha ursae minoris

Procyon, Alpha Canis Minoris (α CMi), is the primary component in a binary star system located only 11.46 light-years from Earth in the constellation Canis… Read More »Procyon

Rasalgethi

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rasalgethi star,alpha herculis

Rasalgethi, Alpha Herculis A (α Her A) is a red supergiant or bright giant located in the northern constellation Hercules, near the border with Ophiuchus.… Read More »Rasalgethi