Star · F3V
α¹ Lib
α¹ Lib is a main-sequence star of spectral type F3V in the constellation Libra, 78.1 light-years from the Sun.
| Other names | Gl 563.4 · HIP 72603 |
|---|---|
| Constellation | Libra |
| Distance | 78.1 light-years (23.9 pc) |
| Apparent magnitude | magnitude 5.15 |
| Absolute magnitude | magnitude 3.25 |
| Spectral type | F3V |
| Surface temperature | 6,870 K |
| Luminosity | 4.24 L☉ |
| Radius | 1.45 R☉ |
| Mass | 1.43 M☉ (estimated) |
| Right ascension (J2000) | 14h 50m 41.2s |
| Declination (J2000) | −15° 59′ 50″ |
| Space velocity (relative to the Sun) | 26.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.15). Visible from the whole Southern Hemisphere and north to latitude 74° N. South of latitude 74° 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 1948. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around α¹ Lib, the Sun would look like a star of magnitude 6.73, in the direction where our sky has the constellation Aries. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Zubenelgenubi 2.28 light-years
- HIP 71743 3.39 light-years
- GJ 3888 8.74 light-years
- GJ 3865B 9.57 light-years
- GJ 3847 9.98 light-years
- HIP 71469 12.0 light-years
- WISEA J143422.31-083934.2 12.1 light-years
- GJ 3845 12.5 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.