Star · K5
HIP 28831
HIP 28831 is a supergiant star of spectral type K5 in the constellation Camelopardalis, 728.1 light-years from the Sun.
| Constellation | Camelopardalis |
|---|---|
| Distance | 728.1 light-years (223.2 pc) |
| Apparent magnitude | magnitude 6.28 |
| Absolute magnitude | magnitude −0.46 |
| Spectral type | K5 |
| Surface temperature | 3,780 K |
| Luminosity | 494 L☉ |
| Radius | 52 R☉ |
| Mass | 5.34 M☉ (estimated) |
| Right ascension (J2000) | 6h 05m 09.3s |
| Declination (J2000) | +75° 35′ 09″ |
| Space velocity (relative to the Sun) | 16.2 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 6.28). Visible from the whole Northern Hemisphere and south to latitude 14° S. North of latitude 14° N it never sets.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1298. 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 HIP 28831, the Sun would look like a star of magnitude 11.57, in the direction where our sky has the constellation Apus. 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.