Star · K2III
HIP 54842
HIP 54842 is a giant star of spectral type K2III in the constellation Ursa Major, 396.6 light-years from the Sun.
| Constellation | Ursa Major |
|---|---|
| Distance | 396.6 light-years (121.6 pc) |
| Apparent magnitude | magnitude 6.33 |
| Absolute magnitude | magnitude 0.91 |
| Spectral type | K2III |
| Surface temperature | 4,410 K |
| Luminosity | 72.7 L☉ |
| Radius | 14.6 R☉ |
| Mass | 3.09 M☉ (estimated) |
| Right ascension (J2000) | 11h 13m 40.1s |
| Declination (J2000) | +41° 05′ 20″ |
| Space velocity (relative to the Sun) | 17.6 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.33). Visible from the whole Northern Hemisphere and south to latitude 49° S. North of latitude 49° 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 1629. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 7.0 million years.
The Sun seen from there
From a planet around HIP 54842, the Sun would look like a star of magnitude 10.25, in the direction where our sky has the constellation Grus. 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.