Star · M3III
72 Leo
72 Leo is a giant star of spectral type M3III in the constellation Leo, 759.6 light-years from the Sun.
| Other names | HIP 54951 |
|---|---|
| Constellation | Leo |
| Distance | 759.6 light-years (232.9 pc) |
| Apparent magnitude | magnitude 4.56 |
| Absolute magnitude | magnitude −2.28 |
| Spectral type | M3III |
| Surface temperature | 3,570 K |
| Luminosity | 3,550 L☉ |
| Radius | 156 R☉ |
| Mass | 9.39 M☉ (estimated) |
| Right ascension (J2000) | 11h 15m 12.2s |
| Declination (J2000) | +23° 05′ 44″ |
| Space velocity (relative to the Sun) | 33.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.56). 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 1266. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 13 million years.
The Sun seen from there
From a planet around 72 Leo, the Sun would look like a star of magnitude 11.67, in the direction where our sky has the constellation Aquarius. It would be invisible to the naked eye.
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.