Star · A7IV
φ Leo
φ Leo is a subgiant star of spectral type A7IV in the constellation Leo, 188.7 light-years from the Sun.
| Other names | HIP 55084 |
|---|---|
| Constellation | Leo |
| Distance | 188.7 light-years (57.9 pc) |
| Apparent magnitude | magnitude 4.45 |
| Absolute magnitude | magnitude 0.64 |
| Spectral type | A7IV |
| Surface temperature | 8,090 K |
| Luminosity | 50.6 L☉ |
| Radius | 3.62 R☉ |
| Mass | 2.79 M☉ (estimated) |
| Right ascension (J2000) | 11h 16m 39.7s |
| Declination (J2000) | −3° 39′ 06″ |
| Space velocity (relative to the Sun) | 31.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.45). Visible from the whole Southern Hemisphere and north to latitude 86° N. 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 1837. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.3 million years.
The Sun seen from there
From a planet around φ Leo, the Sun would look like a star of magnitude 8.64, 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 55057 3.79 light-years
- HIP 56049 11.3 light-years
- Shama 13.0 light-years
- ULAS J111929.43+002133.1 14.0 light-years
- HIP 53765 15.4 light-years
- TOI-654 15.9 light-years
- HIP 56907 19.7 light-years
- HIP 54857 19.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.