Star · K3II
HIP 7999
HIP 7999 is a bright giant star of spectral type K3II in the constellation Cetus, 1,053 light-years from the Sun.
| Constellation | Cetus |
|---|---|
| Distance | 1,053 light-years (322.8 pc) |
| Apparent magnitude | magnitude 4.98 |
| Absolute magnitude | magnitude −2.56 |
| Spectral type | K3II |
| Surface temperature | 3,990 K |
| Luminosity | 2,640 L☉ |
| Radius | 108 R☉ |
| Mass | 8.62 M☉ (estimated) |
| Right ascension (J2000) | 1h 42m 43.5s |
| Declination (J2000) | −3° 41′ 25″ |
| Space velocity (relative to the Sun) | 63.0 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.98). Visible from the whole Southern Hemisphere and north to latitude 86° N. It stands highest at midnight in October, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 973. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 19 million years.
The Sun seen from there
From a planet around HIP 7999, the Sun would look like a star of magnitude 12.37, in the direction where our sky has the constellation Virgo. 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.