The Binocular Sky


μ Cep (the Garnet Star)

Constellation: Cep
Object Type: Variable Star
RA:  21h 43m 30s
Dec:  +58° 46' 48"
Magnitude: 4.0
Recommended minimum aperture: 50mm

Charts for 50mm Binocular (5° aperture circle).   Click on a chart to print it.


To find μ Cep, place α Cephei at the NW edge of a 5° field and μ will be diametrically opposite.

What You Should See:

μ Cep is one of the reddest stars in the sky; it was named "The Garnet Star" by William Herschel. The deep orange colour of this red giant is nicely brought out in 10×50 binoculars. It has a variability of a bit under a magnitude, but is usually around 4th magnitude. It is one of the largest known stars; if it replaced the Sun, it would extend well beyond the orbit of Jupiter. It is destined to become a supernova.

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