Star · A0IV
HIP 31758
HIP 31758 is a subgiant star of spectral type A0IV in the constellation Canis Major, 509.8 light-years from the Sun.
| Constellation | Canis Major |
|---|---|
| Distance | 509.8 light-years (156.3 pc) |
| Apparent magnitude | magnitude 6.01 |
| Absolute magnitude | magnitude 0.04 |
| Spectral type | A0IV |
| Surface temperature | 9,630 K |
| Luminosity | 107 L☉ |
| Radius | 3.72 R☉ |
| Mass | 3.45 M☉ (estimated) |
| Right ascension (J2000) | 6h 38m 35.4s |
| Declination (J2000) | −16° 52′ 25″ |
| Space velocity (relative to the Sun) | 21.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.01). Visible from the whole Southern Hemisphere and north to latitude 73° N. South of latitude 73° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1516. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 9.0 million years.
The Sun seen from there
From a planet around HIP 31758, the Sun would look like a star of magnitude 10.80, 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.