Star · A1V
17 Lib
17 Lib is a main-sequence star of spectral type A1V in the constellation Libra, 397.2 light-years from the Sun.
| Other names | HIP 73249 |
|---|---|
| Constellation | Libra |
| Distance | 397.2 light-years (121.8 pc) |
| Apparent magnitude | magnitude 6.61 |
| Absolute magnitude | magnitude 1.18 |
| Spectral type | A1V |
| Surface temperature | 9,980 K |
| Luminosity | 39.5 L☉ |
| Radius | 2.1 R☉ |
| Mass | 2.6 M☉ (estimated) |
| Right ascension (J2000) | 14h 58m 13.4s |
| Declination (J2000) | −11° 09′ 17″ |
| Space velocity (relative to the Sun) | 23.5 km/s |
In the sky
Too faint for the naked eye (magnitude 6.61); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 79° N. South of latitude 79° 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 1629. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.0 million years.
The Sun seen from there
From a planet around 17 Lib, the Sun would look like a star of magnitude 10.26, in the direction where our sky has the constellation Aries. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.