Star · A2V
ι² Lib
ι² Lib is a main-sequence star of spectral type A2V in the constellation Libra, 290.2 light-years from the Sun.
| Other names | HIP 74493 |
|---|---|
| Constellation | Libra |
| Distance | 290.2 light-years (89.0 pc) |
| Apparent magnitude | magnitude 6.07 |
| Absolute magnitude | magnitude 1.32 |
| Spectral type | A2V |
| Surface temperature | 8,800 K |
| Luminosity | 29.2 L☉ |
| Radius | 2.33 R☉ |
| Mass | 2.38 M☉ (estimated) |
| Right ascension (J2000) | 15h 13m 19.2s |
| Declination (J2000) | −19° 38′ 51″ |
| Space velocity (relative to the Sun) | 26.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.07). Visible from the whole Southern Hemisphere and north to latitude 70° N. South of latitude 70° 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 1736. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.1 million years.
The Sun seen from there
From a planet around ι² Lib, the Sun would look like a star of magnitude 9.58, 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):
- HIP 74684 7.80 light-years
- HIP 73611 16.8 light-years
- HIP 75623 17.7 light-years
- HIP 75768 19.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.