Star profile
33 Piscium
Variable starWhat is 33 Piscium
33 Piscium is an inseparable pair. Its primary is a red giant of type K0 IIIb whose chemistry reveals the «first dredge-up», the moment when core ashes rise to the surface. The two orbit each other in 72.93 days with moderate eccentricity; the system —catalogued as BC Piscium— is an RS Canum Venaticorum variable, its light modulated by active starspots. Leah Allen and Adelaide Hobe first detected its radial-velocity swing at Lick Observatory in 1911.
Where it is and when to see it
33 Piscium lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is September: 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
Stelvia's sky works like a signature wall: anyone can leave their name and a message on a real star, and that signature goes up on the map for everyone to read. Signing is free.
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 33 Piscium
- Constellation
- Pisces
- Apparent magnitude
- 4.61
- Distance
- 128.8 light years
- Coordinates (J2000)
- RA 1.334° · Dec -5.708°
- Catalogue
- HIP 443 · HD 28
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Other stars in Pisces
Pisces has 79 stars in Stelvia's catalogue. Here are a few of them.
- AlphergEta Piscium3.62
- Gamma Piscium3.70
- AlreschaAlpha Piscium3.82
- FumalsamakahBeta Piscium4.48
- Lambda Piscium4.49
- Tau Piscium4.51
- Xi Piscium4.61
- Chi Piscium4.66