Semi-regular and Mira stars

Alpha Ori (Betelgeuse)




Mu Cephei

Cephei (HD 206936), the Herschel's ``Garnet Star'', is a fourth-magnitude M-supergiant in southern Cepheus near the IC 1396 nebula complex. This is semi-regular pulsating star of spectral type M2Iae. The variation range is between m=3.6-5.1 (periods of 2 and 12 years) .

Position (J2000):     R.A.= 21 43 30      Dec. =  +58 46 48


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R Leo

A classical Mira star at maximum.

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