Star · A1
4 Vir
4 Vir is a main-sequence star of spectral type A1 in the constellation Virgo, 198.4 light-years from the Sun.
| Other names | HIP 57562 |
|---|---|
| Constellation | Virgo |
| Distance | 198.4 light-years (60.8 pc) |
| Apparent magnitude | magnitude 5.31 |
| Absolute magnitude | magnitude 1.39 |
| Spectral type | A1 |
| Surface temperature | 9,670 K |
| Luminosity | 31.2 L☉ |
| Radius | 1.99 R☉ |
| Mass | 2.43 M☉ (estimated) |
| Right ascension (J2000) | 11h 47m 54.9s |
| Declination (J2000) | +8° 14′ 45″ |
| Space velocity (relative to the Sun) | 16.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.31). Visible from the whole Northern Hemisphere and south to latitude 82° S. It stands highest at midnight in March, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1828. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.5 million years.
The Sun seen from there
From a planet around 4 Vir, the Sun would look like a star of magnitude 8.75, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- ULAS J115038.79+094942.9 8.37 light-years
- HIP 57868 10.0 light-years
- SIMP J11384458+0748213 11.1 light-years
- HIP 57378 12.0 light-years
- HIP 58607 12.7 light-years
- HIP 57139 17.9 light-years
- HIP 58871 19.0 light-years
- HIP 56028 19.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.