Beta Crucis

Betelgeuse

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betelgeuse star,alpha orionis

Betelgeuse, Alpha Orionis (α Ori), is a red supergiant star of the spectral type M1-2 located in the constellation Orion, the Hunter. It has an… Read More »Betelgeuse

Achernar

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achernar star,alpha eridani

Achernar, Alpha Eridani (α Eri), is a class B hydrogen-fusing dwarf located in the constellation Eridanus. Its estimated luminosity is 3,150 times that of the… Read More »Achernar