Star · B6V
HIP 103889
HIP 103889 is a main-sequence star of spectral type B6V in the constellation Aquarius, 1,298 light-years from the Sun.
| Constellation | Aquarius |
|---|---|
| Distance | 1,298 light-years (397.9 pc) |
| Apparent magnitude | magnitude 6.50 |
| Absolute magnitude | magnitude −1.50 |
| Spectral type | B6V |
| Surface temperature | 11,470 K |
| Luminosity | 595 L☉ |
| Radius | 6.17 R☉ |
| Mass | 5.64 M☉ (estimated) |
| Right ascension (J2000) | 21h 02m 59.6s |
| Declination (J2000) | −0° 55′ 29″ |
| Space velocity (relative to the Sun) | 17.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.50). Visible from the whole Southern Hemisphere and north to latitude 89° N. It stands highest at midnight in August, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 728. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 23 million years.
The Sun seen from there
From a planet around HIP 103889, the Sun would look like a star of magnitude 12.83, in the direction where our sky has the constellation Hydra. 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.