Star · K2III
HIP 11381
HIP 11381 is a giant star of spectral type K2III in the constellation Cetus, 289.8 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 289.8 light-years (88.9 pc) |
| Apparent magnitude | magnitude 5.89 |
| Absolute magnitude | magnitude 1.15 |
| Spectral type | K2III |
| Surface temperature | 4,220 K |
| Luminosity | 68.3 L☉ |
| Radius | 15.5 R☉ |
| Mass | 3.04 M☉ (estimated) |
| Right ascension (J2000) | 2h 26m 35.2s |
| Declination (J2000) | −20° 02′ 33″ |
| Space velocity (relative to the Sun) | 72.8 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.89). Visible from the whole Southern Hemisphere and north to latitude 70° N. South of latitude 70° S it never sets. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1736. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.1 million years.
The Sun seen from there
From a planet around HIP 11381, the Sun would look like a star of magnitude 9.57, in the direction where our sky has the constellation Boötes. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 11378 6.82 light-years
- HIP 11553 8.71 light-years
- HIP 11287 9.50 light-years
- HIP 11241 11.8 light-years
- HIP 10649 14.5 light-years
- HIP 10579 15.9 light-years
- HIP 10658 17.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.