Star profile
33 Geminorum
Variable starWhat is 33 Geminorum
33 Geminorum is a peculiar variable about 858 light-years away, a blue giant classed as a mercury-manganese star. Instead of mixing uniformly, its atmosphere separates the elements into anomalous layers that produce photometric variations on periods of just a few days. It also belongs to an SB1 spectroscopic binary, in which the hidden companion betrays itself only through the shifting of spectral lines.
Where it is and when to see it
33 Geminorum lies in the northern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is January: 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 Geminorum
- Constellation
- Gemini
- Apparent magnitude
- 5.87
- Distance
- 858.4 light years
- Coordinates (J2000)
- RA 102.458° · Dec 16.203°
- Catalogue
- HIP 32753 · HD 49606
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Gemini
Gemini has 74 stars in Stelvia's catalogue. Here are a few of them.
- PolluxBeta Geminorum1.16
- CastorAlpha Geminorum1.58
- AlhenaGamma Geminorum1.93
- 52 Geminorum5.84
- 48 Geminorum5.85
- HIP 339375.86
- HIP 334215.91
- HIP 291965.93