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Garnet Star

Its name Mu Cephei has got from its deep red color. Not long ago it was the star with the largest known diameter, but got replaced by VV Cephei.

Constellation: Cepheus
Distance: 1800 light-years
Spectral class: M2
Visual magnitude: 3.7
Luminosity: 350 000 * Sun
Mass: circa 20 * Sun
Diameter: 2500 * Sun

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    Garnet Star
The star is the bright dot up in the middle.
Photo: Nasa

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