Star · A2III
HIP 54746
HIP 54746 is a giant star of spectral type A2III in the constellation Centaurus, 178.3 light-years from the Sun.
| Constellation | Centaurus |
|---|---|
| Distance | 178.3 light-years (54.7 pc) |
| Apparent magnitude | magnitude 5.37 |
| Absolute magnitude | magnitude 1.68 |
| Spectral type | A2III |
| Surface temperature | 8,360 K |
| Luminosity | 19.9 L☉ |
| Radius | 2.13 R☉ |
| Mass | 2.14 M☉ (estimated) |
| Right ascension (J2000) | 11h 12m 33.0s |
| Declination (J2000) | −49° 06′ 04″ |
| Space velocity (relative to the Sun) | 29.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.37). Visible from the whole Southern Hemisphere and north to latitude 41° N. South of latitude 41° 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 1848. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.2 million years.
The Sun seen from there
From a planet around HIP 54746, the Sun would look like a star of magnitude 8.52, in the direction where our sky has the constellation Andromeda. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.