
Star profile
HIP 15305
What is HIP 15305
It shines in Horologium, one of the constellations named by Lacaille in honour of the pendulum clock, an instrument then revolutionary. Its orange tone places it among the K-class stars, mature giants of gentle combustion. Its light set out some 512 years ago, when Leonardo da Vinci was painting his last works in Italy and the printing press kept multiplying books across Europe. Broader and cooler than the Sun, it quietly upholds the symbolic figure of the celestial clock, measuring the cosmos's own time in its own way.
Where it is and when to see it
HIP 15305 lies in the southern celestial hemisphere. It is visible to the naked eye under a dark sky. Its best month of the year is October: 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 15305
- Constellation
- Horologium
- Apparent magnitude
- 5.84
- Distance
- 512.1 light years
- Coordinates (J2000)
- RA 49.361° · Dec -47.752°
- Catalogue
- HIP 15305 · HD 20640
A symbolic commemorative gift: neither the signature nor the chosen name implies ownership of the star or recognition by the IAU.
Other stars in Horologium
Horologium has 18 stars in Stelvia's catalogue. Here are a few of them.
- Alpha Horologium3.85
- Delta Horologium4.93
- Beta Horologium4.98
- HIP 175345.72
- Gamma Horologium5.73
- HIP 108715.81
- HIP 181995.93
- HIP 163395.98