Star · K2III
HIP 31827
HIP 31827 is a giant star of spectral type K2III in the constellation Canis Major, 1,049 light-years from the Sun.
| Constellation | Canis Major |
|---|---|
| Distance | 1,049 light-years (321.7 pc) |
| Apparent magnitude | magnitude 4.82 |
| Absolute magnitude | magnitude −2.72 |
| Spectral type | K2III |
| Surface temperature | 3,860 K |
| Luminosity | 3,540 L☉ |
| Radius | 133 R☉ |
| Mass | 9.38 M☉ (estimated) |
| Right ascension (J2000) | 6h 39m 16.7s |
| Declination (J2000) | −14° 08′ 45″ |
| Space velocity (relative to the Sun) | 31.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.82). Visible from the whole Southern Hemisphere and north to latitude 76° N. South of latitude 76° 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 977. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 19 million years.
The Sun seen from there
From a planet around HIP 31827, the Sun would look like a star of magnitude 12.37, 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.