Star · K4III
HIP 75257
HIP 75257 is a giant star of spectral type K4III in the constellation Boötes, 2,465 light-years from the Sun.
| Constellation | Boötes |
|---|---|
| Distance | 2,465 light-years (755.8 pc) |
| Apparent magnitude | magnitude 5.56 |
| Absolute magnitude | magnitude −3.83 |
| Spectral type | K4III |
| Surface temperature | 3,610 K |
| Luminosity | 13,900 L☉ |
| Radius | 301 R☉ |
| Mass | 13.9 M☉ (estimated) |
| Right ascension (J2000) | 15h 22m 37.4s |
| Declination (J2000) | +39° 34′ 53″ |
| Space velocity (relative to the Sun) | 52.5 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.56). Visible from the whole Northern Hemisphere and south to latitude 50° S. North of latitude 50° N it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around 440 BC. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 44 million years.
The Sun seen from there
From a planet around HIP 75257, the Sun would look like a star of magnitude 14.22, in the direction where our sky has the constellation Eridanus. 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.