
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, when it culminates around midnight.
- From London it never rises above the horizon.
- From New York it culminates about 2° above the horizon.
- From Sydney it culminates about 76° above the horizon.
It can be seen from anywhere south of 42° N.
It ranks no. 16 in brightness among the 18 stars of Horologium in our catalogue. To find it, start from Alpha Horologium, the brightest: it lies about 11° away (a fist at arm's length covers about 10°).
The light you see today left it about 510 years ago.
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Leave your signature on HIP 15305
Your name and a message go up on the map for everyone to read. Signing is free.
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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