Star · K5
HIP 23251
HIP 23251 is a supergiant star of spectral type K5 in the constellation Mensa, 944.5 light-years from the Sun.
| Constellation | Mensa |
|---|---|
| Distance | 944.5 light-years (289.6 pc) |
| Apparent magnitude | magnitude 6.29 |
| Absolute magnitude | magnitude −1.02 |
| Spectral type | K5 |
| Surface temperature | 3,770 K |
| Luminosity | 832 L☉ |
| Radius | 67.7 R☉ |
| Mass | 6.2 M☉ (estimated) |
| Right ascension (J2000) | 5h 00m 13.2s |
| Declination (J2000) | −78° 18′ 00″ |
| Space velocity (relative to the Sun) | 24.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.29). Visible from the whole Southern Hemisphere and north to latitude 12° N. South of latitude 12° S it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1082. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 17 million years.
The Sun seen from there
From a planet around HIP 23251, the Sun would look like a star of magnitude 12.14, in the direction where our sky has the constellation Ursa Minor. 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.