Alpha Herculis

Rasalgethi

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

Mu Cephei

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garnet star

Mu Cephei (μ Cep) is a red supergiant located in the constellation Cepheus. With an average apparent magnitude of 4.08, it is the 10th brightest… Read More »Mu Cephei