Star · A5IV
22 Leo
22 Leo is a subgiant star of spectral type A5IV in the constellation Leo, 120.2 light-years from the Sun.
| Other names | HIP 48390 |
|---|---|
| Constellation | Leo |
| Distance | 120.2 light-years (36.9 pc) |
| Apparent magnitude | magnitude 5.29 |
| Absolute magnitude | magnitude 2.46 |
| Spectral type | A5IV |
| Surface temperature | 7,950 K |
| Luminosity | 9.34 L☉ |
| Radius | 1.61 R☉ |
| Mass | 1.75 M☉ (estimated) |
| Right ascension (J2000) | 9h 51m 53.0s |
| Declination (J2000) | +24° 23′ 43″ |
| Space velocity (relative to the Sun) | 27.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.29). Visible from the whole Northern Hemisphere and south to latitude 66° S. North of latitude 66° N it never sets. It stands highest at midnight in February, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1906. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.1 million years.
The Sun seen from there
From a planet around 22 Leo, the Sun would look like a star of magnitude 7.66, in the direction where our sky has the constellation Capricornus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- Rasalas 5.91 light-years
- HIP 49046 7.68 light-years
- HIP 48024 10.4 light-years
- HIP 46671 11.9 light-years
- HIP 50355 12.5 light-years
- HIP 46478 13.9 light-years
- HIP 48785 16.7 light-years
- HIP 46018 16.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.