Star · A5
64 Leo
64 Leo is a main-sequence star of spectral type A5 in the constellation Leo, 246.7 light-years from the Sun.
| Other names | HIP 54388 |
|---|---|
| Constellation | Leo |
| Distance | 246.7 light-years (75.6 pc) |
| Apparent magnitude | magnitude 6.48 |
| Absolute magnitude | magnitude 2.09 |
| Spectral type | A5 |
| Surface temperature | 8,450 K |
| Luminosity | 13.9 L☉ |
| Radius | 1.74 R☉ |
| Mass | 1.93 M☉ (estimated) |
| Right ascension (J2000) | 11h 07m 39.7s |
| Declination (J2000) | +23° 19′ 26″ |
| Space velocity (relative to the Sun) | 6.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.48). Visible from the whole Northern Hemisphere and south to latitude 67° S. North of latitude 67° N it never sets. 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 1779. 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 64 Leo, the Sun would look like a star of magnitude 9.22, 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):
- SDSS J110938.29+235339.6 11.5 light-years
- HIP 54444 12.1 light-years
- HIP 54741 14.7 light-years
- HIP 54845 17.2 light-years
- HIP 53005 17.9 light-years
- HIP 54443 18.1 light-years
- HIP 54381 18.4 light-years
- HIP 53866 18.4 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.