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Star profile

Mu Cassiopeiae

Nearby star
3D likeness based on its real data · class G · ~5,500 K

What is Mu Cassiopeiae

Mu Cassiopeiae is a rarity: a yellow star just 24.6 light-years away, a near neighbour of the Sun and one of the few at that distance visible to the unaided eye. It belongs to the galaxy's ancient population, poor in heavy metals, and its proper motion is among the highest of the northern sky —it crosses the vault at a noticeable pace over centuries.

Where it is and when to see it

Mu Cassiopeiae lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is November, when it culminates around midnight.

  • From London it never sets and culminates about 87° up.
  • From New York it never sets and culminates about 76° up.
  • From Sydney it culminates about 1° above the horizon.

It can be seen from anywhere north of 35° S.

It ranks no. 34 in brightness among the 93 stars of Cassiopeia in our catalogue. To find it, start from Cih, the brightest: it lies about 6° away (a fist at arm's length covers about 10°).

The light you see today left it about 25 years ago.

Find it on the sky map

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Leave your signature on Mu Cassiopeiae

Your name and a message go up on the map for everyone to read. Signing is free.

Without a lock, someone else can replace your signature. How the lock works

We'll ask for an email to confirm it's you, no password.

A public signature from a real person. The chosen name is a symbolic denomination within Stelvia, with no official standing or IAU recognition: the sky is not for sale and belongs to no one.

Astronomical data for Mu Cassiopeiae

Constellation
Cassiopeia
Apparent magnitude
5.17
Distance
24.6 light years
Coordinates (J2000)
RA 17.062° · Dec 54.920°
Catalogue
HIP 5336 · HD 6582

A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.

Other stars in Cassiopeia

Cassiopeia has 93 stars in Stelvia's catalogue. Here are a few of them.

See all 93 stars in Cassiopeia