Star profile
32 Cassiopeiae
Variable starWhat is 32 Cassiopeiae
32 Cassiopeiae —also known as RU Cassiopeiae for its variability— is a B9 subgiant 388 light-years away in the W of Cassiopeia, the unmistakable asterism that wheels eternally around the northern celestial pole. Its surface, far hotter than the Sun's, radiates the blue-white tone typical of young, massive stars. Its brightness shifts in a subtle pattern that only specialised observatories can record with precision.
Where it is and when to see it
32 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: 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 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 32 Cassiopeiae
- Constellation
- Cassiopeia
- Apparent magnitude
- 5.57
- Distance
- 388.3 light years
- Coordinates (J2000)
- RA 17.922° · Dec 65.019°
- Catalogue
- HIP 5589 · HD 6972
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
- HIP 1146225.57
- HIP 1180775.57
- 10 Cassiopeiae5.57
- 43 Cassiopeiae5.57
- HIP 1149245.58