Star · A2I
HIP 78078
HIP 78078 is a supergiant star of spectral type A2I in the constellation Libra, 163.2 light-years from the Sun.
| Constellation | Libra |
|---|---|
| Distance | 163.2 light-years (50.0 pc) |
| Apparent magnitude | magnitude 6.11 |
| Absolute magnitude | magnitude 2.61 |
| Spectral type | A2I |
| Surface temperature | 7,840 K |
| Luminosity | 8.02 L☉ |
| Radius | 1.53 R☉ |
| Mass | 1.68 M☉ (estimated) |
| Right ascension (J2000) | 15h 56m 33.4s |
| Declination (J2000) | −14° 49′ 46″ |
| Space velocity (relative to the Sun) | 30.7 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.11). Visible from the whole Southern Hemisphere and north to latitude 75° N. South of latitude 75° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1863. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.9 million years.
The Sun seen from there
From a planet around HIP 78078, the Sun would look like a star of magnitude 8.33, in the direction where our sky has the constellation Taurus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- θ Lib 7.18 light-years
- HIP 76982 12.1 light-years
- HIP 79203 13.5 light-years
- Zubenelhakrabi 14.5 light-years
- HIP 77872 16.8 light-years
- HIP 77372 17.5 light-years
- HIP 79169 17.9 light-years
- HIP 77534 18.2 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.