Star · K0
HIP 101911
HIP 101911 is a giant star of spectral type K0 in the constellation Aquarius, 257.8 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 257.8 light-years (79.0 pc) |
| Apparent magnitude | magnitude 6.46 |
| Absolute magnitude | magnitude 1.97 |
| Spectral type | K0 |
| Surface temperature | 4,700 K |
| Luminosity | 22.3 L☉ |
| Radius | 7.11 R☉ |
| Mass | 2.21 M☉ (estimated) |
| Right ascension (J2000) | 20h 39m 05.9s |
| Declination (J2000) | −4° 55′ 46″ |
| Space velocity (relative to the Sun) | 5.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.46). Visible from the whole Southern Hemisphere and north to latitude 85° N. It stands highest at midnight in July, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1768. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.6 million years.
The Sun seen from there
From a planet around HIP 101911, the Sun would look like a star of magnitude 9.32, in the direction where our sky has the constellation Hydra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 101224 17.0 light-years
- HIP 100698 18.6 light-years
- HIP 102272 18.9 light-years
- HIP 101735 19.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.