Star · G8II
HIP 54783
HIP 54783 is a bright giant star of spectral type G8II in the constellation Centaurus, 905.3 light-years from the Sun.
| Constellation | Centaurus |
|---|---|
| Distance | 905.3 light-years (277.6 pc) |
| Apparent magnitude | magnitude 6.12 |
| Absolute magnitude | magnitude −1.10 |
| Spectral type | G8II |
| Surface temperature | 4,610 K |
| Luminosity | 398 L☉ |
| Radius | 31.2 R☉ |
| Mass | 5.02 M☉ (estimated) |
| Right ascension (J2000) | 11h 12m 56.7s |
| Declination (J2000) | −49° 44′ 10″ |
| Space velocity (relative to the Sun) | 29.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.12). 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 March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1121. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 16 million years.
The Sun seen from there
From a planet around HIP 54783, the Sun would look like a star of magnitude 12.05, in the direction where our sky has the constellation Andromeda. 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.