Star · B2V
HIP 20922
HIP 20922 is a main-sequence star of spectral type B2V in the constellation Eridanus, 1,541 light-years from the Sun.
| Constellation | Eridanus |
|---|---|
| Distance | 1,541 light-years (472.6 pc) |
| Apparent magnitude | magnitude 5.61 |
| Absolute magnitude | magnitude −2.76 |
| Spectral type | B2V |
| Surface temperature | 13,630 K |
| Luminosity | 2,710 L☉ |
| Radius | 9.33 R☉ |
| Mass | 8.69 M☉ (estimated) |
| Right ascension (J2000) | 4h 29m 06.9s |
| Declination (J2000) | −13° 02′ 54″ |
| Space velocity (relative to the Sun) | 22.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.61). Visible from the whole Southern Hemisphere and north to latitude 77° N. South of latitude 77° 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 485. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 27 million years.
The Sun seen from there
From a planet around HIP 20922, the Sun would look like a star of magnitude 13.20, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.