Star · F5IV
HIP 104481
HIP 104481 is a subgiant star of spectral type F5IV in the constellation Equuleus, 213.8 light-years from the Sun.
| Constellation | Equuleus |
|---|---|
| Distance | 213.8 light-years (65.6 pc) |
| Apparent magnitude | magnitude 6.44 |
| Absolute magnitude | magnitude 2.36 |
| Spectral type | F5IV |
| Surface temperature | 7,020 K |
| Luminosity | 9.7 L☉ |
| Radius | 2.11 R☉ |
| Mass | 1.76 M☉ (estimated) |
| Right ascension (J2000) | 21h 09m 58.3s |
| Declination (J2000) | +2° 56′ 37″ |
| Space velocity (relative to the Sun) | 46.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.44). Visible from the whole Northern Hemisphere and south to latitude 87° S. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1812. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.8 million years.
The Sun seen from there
From a planet around HIP 104481, the Sun would look like a star of magnitude 8.91, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 103892 9.20 light-years
- HIP 103987 10.7 light-years
- HIP 105399 10.9 light-years
- HIP 104606 11.7 light-years
- HIP 104351 19.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.