Star · K1III
57 Vir
57 Vir is a giant star of spectral type K1III in the constellation Virgo, 122.2 light-years from the Sun.
| Other names | Gl 503.3 · HIP 64725 |
|---|---|
| Constellation | Virgo |
| Distance | 122.2 light-years (37.5 pc) |
| Apparent magnitude | magnitude 5.21 |
| Absolute magnitude | magnitude 2.34 |
| Spectral type | K1III |
| Surface temperature | 4,720 K |
| Luminosity | 15.7 L☉ |
| Radius | 5.94 R☉ |
| Mass | 1.99 M☉ (estimated) |
| Right ascension (J2000) | 13h 15m 58.8s |
| Declination (J2000) | −19° 56′ 35″ |
| Space velocity (relative to the Sun) | 67.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.21). 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 April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1904. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.2 million years.
The Sun seen from there
From a planet around 57 Vir, the Sun would look like a star of magnitude 7.70, in the direction where our sky has the constellation Pisces. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 55 Vir 1.04 light-years
- HIP 65636 7.95 light-years
- γ Hya 9.09 light-years
- HIP 65956 9.10 light-years
- HIP 64428 10.4 light-years
- WISP 130525.51-253828.8 13.8 light-years
- HIP 64303 13.8 light-years
- HIP 62647 15.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.