Star profile
HIP 55831
Hot blue starWhat is HIP 55831
A blue flame in the heart of Centaurus, the kind that burns short but fierce: B-class spectrum, far hotter and more massive than the Sun. Its light departed around the 7th century, when the Visigothic kingdoms of the Iberian peninsula were drafting the Liber Iudiciorum. Fourteen centuries later, that blue glow finally crosses our southern sky, indifferent to an empire long fallen.
Where it is and when to see it
HIP 55831 lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is April: 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 HIP 55831
- Constellation
- Centaurus
- Apparent magnitude
- 5.22
- Distance
- 1364.9 light years
- Coordinates (J2000)
- RA 171.648° · Dec -61.115°
- Catalogue
- HIP 55831 · HD 99556
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Centaurus
Centaurus has 174 stars in Stelvia's catalogue. Here are a few of them.
- Rigil KentaurusAlpha 1 Centauri-0.01
- HadarBeta Centauri0.61
- TolimanAlpha 2 Centauri1.35
- HIP 632105.17
- HIP 557795.18
- HIP 557565.21
- HIP 700355.22
- HIP 643485.24