Star · A3
HIP 20106
HIP 20106 is a main-sequence star of spectral type A3 in the constellation Eridanus, 297.0 light-years from the Sun.
| Constellation | Eridanus |
|---|---|
| Distance | 297.0 light-years (91.1 pc) |
| Apparent magnitude | magnitude 6.09 |
| Absolute magnitude | magnitude 1.29 |
| Spectral type | A3 |
| Surface temperature | 7,450 K |
| Luminosity | 26.3 L☉ |
| Radius | 3.08 R☉ |
| Mass | 2.31 M☉ (estimated) |
| Right ascension (J2000) | 4h 18m 37.5s |
| Declination (J2000) | −22° 58′ 11″ |
| Space velocity (relative to the Sun) | 50.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.09). Visible from the whole Southern Hemisphere and north to latitude 67° N. South of latitude 67° 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 1729. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.3 million years.
The Sun seen from there
From a planet around HIP 20106, the Sun would look like a star of magnitude 9.63, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 19690 7.05 light-years
- HIP 19191 16.0 light-years
- HIP 20044 18.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.