Star profile
HIP 47522
Hot blue starWhat is HIP 47522
In the sinuous coils of Hydra shines a blue B-type star, far hotter and more massive than the Sun, a bonfire destined to burn fast and die young. Its light needs about 506 years to cross the void: what we receive today departed around 1520, as Magellan was crossing the strait that would bear his name. Hydra, the largest of all constellations, unfolds its body like a dark river across the southern sky.
Where it is and when to see it
HIP 47522 lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is February: 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.
It opens in your browser. Free, no account, nothing to install.
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
If you don't have an account yet, we'll ask for an email to confirm it's you: we send you a link and that's it, no password.
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 47522
- Constellation
- Hydra
- Apparent magnitude
- 4.76
- Distance
- 506.5 light years
- Coordinates (J2000)
- RA 145.321° · Dec -23.592°
- Catalogue
- HIP 47522 · HD 83953
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 473104.68
- Omicron Hydrae4.70
- HIP 463714.72
- 26 Hydrae4.77
- 51 Hydrae4.78