Star · K5III
HIP 57240
HIP 57240 is a giant star of spectral type K5III in the constellation Leo, 1,109 light-years from the Sun.
| Constellation | Leo |
|---|---|
| Distance | 1,109 light-years (340.1 pc) |
| Apparent magnitude | magnitude 6.02 |
| Absolute magnitude | magnitude −1.64 |
| Spectral type | K5III |
| Surface temperature | 3,740 K |
| Luminosity | 1,520 L☉ |
| Radius | 92.6 R☉ |
| Mass | 7.37 M☉ (estimated) |
| Right ascension (J2000) | 11h 44m 13.2s |
| Declination (J2000) | +25° 13′ 06″ |
| Space velocity (relative to the Sun) | 24.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.02). Visible from the whole Northern Hemisphere and south to latitude 65° S. North of latitude 65° 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 917. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 20 million years.
The Sun seen from there
From a planet around HIP 57240, the Sun would look like a star of magnitude 12.49, in the direction where our sky has the constellation Sculptor. 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.