Star · B1V
Spica
Spica is a main-sequence star of spectral type B1V in the constellation Virgo, 249.7 light-years from the Sun.
| Other names | α Vir · HIP 65474 |
|---|---|
| Constellation | Virgo |
| Distance | 249.7 light-years (76.6 pc) |
| Apparent magnitude | magnitude 0.98 |
| Absolute magnitude | magnitude −3.44 |
| Spectral type | B1V |
| Surface temperature | 14,490 K |
| Luminosity | 5,790 L☉ |
| Radius | 12.1 R☉ |
| Mass | 10.8 M☉ (estimated) |
| Right ascension (J2000) | 13h 25m 11.6s |
| Declination (J2000) | −11° 09′ 41″ |
| Space velocity (relative to the Sun) | 19.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 0.98). 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 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 1776. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.4 million years.
The Sun seen from there
From a planet around Spica, the Sun would look like a star of magnitude 9.25, 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):
- HIP 64834 8.70 light-years
- HIP 64900 13.5 light-years
- HIP 64511 16.1 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.