Star · K0
HIP 51290
HIP 51290 is a supergiant star of spectral type K0 in the constellation Ursa Major, 808.4 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 808.4 light-years (247.8 pc) |
| Apparent magnitude | magnitude 6.37 |
| Absolute magnitude | magnitude −0.60 |
| Spectral type | K0 |
| Surface temperature | 4,070 K |
| Luminosity | 396 L☉ |
| Radius | 40 R☉ |
| Mass | 5.02 M☉ (estimated) |
| Right ascension (J2000) | 10h 28m 36.5s |
| Declination (J2000) | +45° 12′ 44″ |
| Space velocity (relative to the Sun) | 36.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.37). Visible from the whole Northern Hemisphere and south to latitude 45° S. North of latitude 45° N it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1218. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 14 million years.
The Sun seen from there
From a planet around HIP 51290, the Sun would look like a star of magnitude 11.80, in the direction where our sky has the constellation Grus. 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.