Star profile
6 Cassiopeiae
Variable starWhat is 6 Cassiopeiae
6 Cassiopeiae is a white A2.5 hypergiant, a stellar rarity: about twenty-five times the Sun's mass and close to two hundred thousand times its luminosity, a member of the Alpha Cygni family of variables that flicker faintly and erratically through internal pulsations. It shines within the recognisable W of Cassiopeia, the five-star outline many people learn to find on their very first night under the sky.
Where it is and when to see it
6 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 October: the Sun sits at the opposite point of the sky and the star culminates around midnight. How high it climbs above the horizon depends on the latitude you watch from.
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The signature wall
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A signature without a lock can be replaced by someone else's. The lock makes the signature permanent and lets you choose a symbolic name for the star, always shown next to the star's catalogue identifier. How the lock works
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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 6 Cassiopeiae
- Constellation
- Cassiopeia
- Apparent magnitude
- 5.43
- Distance
- 326200.0 light years
- Coordinates (J2000)
- RA 357.209° · Dec 62.215°
- Catalogue
- HIP 117447 · HD 223385
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.
- CihGamma Cassiopeiae2.15
- SchedarAlpha Cassiopeiae2.24
- CaphBeta Cassiopeiae2.28
- 12 Cassiopeiae5.38
- HIP 35445.41
- 23 Cassiopeiae5.42
- HIP 30835.45
- HIP 1172995.55