Mu Cephei un estel hipergegant vermell de tipus espectral M2Ia o M1I una dels estels més grans que es coneixen. It is one of the largest stars visible to the naked eye, one reason it was discovered by early astronomers. It may be the largest star visible to the naked eye with an estimated radius of 1.15 billion kilometres (710 million miles) or 1,650 times that of the Sun.


Cep, Erakis, HD 206936, HIP 107259, HR 8316, BD+58 2316, mu. "What is the largest known star by mass?" Such stars are fated to live bright but very short lives; the more massive the star, the shorter its life.

The Sun might live for ten billion years, but mu Cep and other massive stars may only live for a few million. Over one billion of Earth's suns could fit inside of Mu Cephei. Mu Cephei is located in the Cephus constellation and it is a red hypergiant. Mu Cephei also called Herschel's Garnet Star is a evolved Red HyperGiant with mass of 19 times and size up to 1260 times the size of Sun. Betelgeuse has served as a spectral standard for its class since 1943, along with the red supergiant Mu Cephei (which is also nearing the end of its life). Betelgeuse < Mu Cephei < VV Cephei A < VY Canis Majoris.

The Garnet Star (Mu Cephei) is a very luminous red supergiant, one of the largest and brightest stars visible not only to the naked eye but in the entire Galaxy.It lies in the constellation Cepheus and is associated with a large region of nebulosity known as IC 1396 or the Garnet Star Nebula (see below). Mu Cephei is located in … T Cephei; Mu Cephei; V354 Cephei; RW Cephei; VV Cephei; References

It is 1,134 times larger than the Sun.. Related pages. Mu Cephei is also a massive star, probably more than 20 times the mass of the sun. ... Mu Cephei, Mu.
Within the whole universe, the sun is quite small compared to the enormous stars that exist beyond our solar system. The sun is the biggest star in this solar system. The “Ia-ab” suffix means that it is an intermediate-luminosity supergiant, halfway between a normal and luminous supergiant star. In fact, Mu Cephei is an extremely luminous red supergiant and one of the reddest known stars of all. It should be possible to calculate the masses of eclipsing binary stars with some accuracy, but in this case mass loss, changes in the orbital parameters, a disk obscuring the hot secondary, and doubt about the distance of the system have led to wildly varying estimates.

MY Cephei is a red supergiant star located in the Cepheus constellation.

Observations of massive stars indicate that there is an upper limit to their luminosity, the Humphreys–Davidson limit.In practice, this is lower than the theoretical Eddington limit, which is the maximum luminosity a star can reach, assuming a balance between the outward force due to radiation … The largest star that scientists have discovered is called Mu Cephei.