Star · K3III
HIP 16509
HIP 16509 is a giant star of spectral type K3III in the constellation Horologium, 311.8 light-years from the Sun.
| Constellation | Horologium |
|---|---|
| Distance | 311.8 light-years (95.6 pc) |
| Apparent magnitude | magnitude 5.67 |
| Absolute magnitude | magnitude 0.77 |
| Spectral type | K3III |
| Surface temperature | 4,510 K |
| Luminosity | 76.5 L☉ |
| Radius | 14.3 R☉ |
| Mass | 3.14 M☉ (estimated) |
| Right ascension (J2000) | 3h 32m 34.8s |
| Declination (J2000) | −50° 22′ 43″ |
| Space velocity (relative to the Sun) | 70.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.67). Visible from the whole Southern Hemisphere and north to latitude 40° N. South of latitude 40° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1714. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.5 million years.
The Sun seen from there
From a planet around HIP 16509, the Sun would look like a star of magnitude 9.73, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 16454 7.60 light-years
- HIP 17343 10.5 light-years
- HIP 16084 15.0 light-years
- HIP 17164 17.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.