Star · A9V
HIP 101808
HIP 101808 is a main-sequence star of spectral type A9V in the constellation Capricornus, 156.0 light-years from the Sun.
| Constellation | Capricornus |
|---|---|
| Distance | 156.0 light-years (47.8 pc) |
| Apparent magnitude | magnitude 6.38 |
| Absolute magnitude | magnitude 2.98 |
| Spectral type | A9V |
| Surface temperature | 7,290 K |
| Luminosity | 5.5 L☉ |
| Radius | 1.47 R☉ |
| Mass | 1.53 M☉ (estimated) |
| Right ascension (J2000) | 20h 37m 52.2s |
| Declination (J2000) | −25° 06′ 33″ |
| Space velocity (relative to the Sun) | 31.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.38). Visible from the whole Southern Hemisphere and north to latitude 65° N. South of latitude 65° S it never sets. 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 1870. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.8 million years.
The Sun seen from there
From a planet around HIP 101808, the Sun would look like a star of magnitude 8.23, in the direction where our sky has the constellation Cancer. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 101942 7.22 light-years
- HIP 101443 8.49 light-years
- HIP 100568 13.6 light-years
- HIP 102675 14.5 light-years
- HIP 99229 18.8 light-years
- CFBDS J203737.07-192202.9 19.2 light-years
- HIP 100685 19.7 light-years
- HIP 99273 19.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.