Star · A2V
HIP 18481
HIP 18481 is a main-sequence star of spectral type A2V in the constellation Taurus, 254.8 light-years from the Sun.
| Constellation | Taurus |
|---|---|
| Distance | 254.8 light-years (78.1 pc) |
| Apparent magnitude | magnitude 6.09 |
| Absolute magnitude | magnitude 1.63 |
| Spectral type | A2V |
| Surface temperature | 9,450 K |
| Luminosity | 24.3 L☉ |
| Radius | 1.84 R☉ |
| Mass | 2.26 M☉ (estimated) |
| Right ascension (J2000) | 3h 57m 01.7s |
| Declination (J2000) | +6° 02′ 24″ |
| Space velocity (relative to the Sun) | 31.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.09). Visible from the whole Northern Hemisphere and south to latitude 84° S. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1771. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.5 million years.
The Sun seen from there
From a planet around HIP 18481, the Sun would look like a star of magnitude 9.29, in the direction where our sky has the constellation Libra. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 18856 15.4 light-years
- HIP 18555 16.2 light-years
- HIP 18618 17.8 light-years
- HIP 17867 17.9 light-years
- HIP 19575 18.3 light-years
- HIP 19532 19.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.