Star · A9
HIP 3903
HIP 3903 is a main-sequence star of spectral type A9 in the constellation Phoenix, 316.9 light-years from the Sun.
| Constellation | Phoenix |
|---|---|
| Distance | 316.9 light-years (97.2 pc) |
| Apparent magnitude | magnitude 6.49 |
| Absolute magnitude | magnitude 1.55 |
| Spectral type | A9 |
| Surface temperature | 7,550 K |
| Luminosity | 20.8 L☉ |
| Radius | 2.67 R☉ |
| Mass | 2.16 M☉ (estimated) |
| Right ascension (J2000) | 0h 50m 03.8s |
| Declination (J2000) | −43° 23′ 42″ |
| Space velocity (relative to the Sun) | 16.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.49). Visible from the whole Southern Hemisphere and north to latitude 47° N. South of latitude 47° 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 1709. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.6 million years.
The Sun seen from there
From a planet around HIP 3903, the Sun would look like a star of magnitude 9.77, in the direction where our sky has the constellation Canes Venatici. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 3137 12.9 light-years
- HIP 5130 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.