Star profile
57 Hydrae
Hot blue starWhat is 57 Hydrae
57 Hydrae is a blue-white B-type star 448 light-years away, set within Hydra, the largest constellation in the sky: a water-serpent stretching across nearly a quarter of the celestial vault. B stars burn young and fall early, doomed by their own mass. Its light crossed space throughout the entire modern era and now reaches the present sky, fragile as an echo.
Where it is and when to see it
57 Hydrae lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is May: 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 57 Hydrae
- Constellation
- Hydra
- Apparent magnitude
- 5.76
- Distance
- 447.5 light years
- Coordinates (J2000)
- RA 221.990° · Dec -26.646°
- Catalogue
- HIP 72378 · HD 130274
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Hydra
Hydra has 121 stars in Stelvia's catalogue. Here are a few of them.
- AlphardAlpha Hydrae1.99
- Gamma Hydrae2.99
- Zeta Hydrae3.11
- HIP 468135.74
- HIP 437985.75
- HIP 449365.76
- 48 Hydrae5.77
- HIP 457435.79