Star · B2V
HIP 31190
HIP 31190 is a main-sequence star of spectral type B2V in the constellation Canis Major, 2,388 light-years from the Sun.
| Constellation | Canis Major |
|---|---|
| Distance | 2,388 light-years (732.3 pc) |
| Apparent magnitude | magnitude 5.73 |
| Absolute magnitude | magnitude −3.59 |
| Spectral type | B2V |
| Surface temperature | 13,120 K |
| Luminosity | 5,370 L☉ |
| Radius | 14.2 R☉ |
| Mass | 10.6 M☉ (estimated) |
| Right ascension (J2000) | 6h 32m 39.0s |
| Declination (J2000) | −32° 01′ 50″ |
| Space velocity (relative to the Sun) | 28.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.73). Visible from the whole Southern Hemisphere and north to latitude 58° N. South of latitude 58° 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 363 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 42 million years.
The Sun seen from there
From a planet around HIP 31190, the Sun would look like a star of magnitude 14.15, in the direction where our sky has the constellation Lyra. 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.