Star · K2III
HIP 23668
HIP 23668 is a giant star of spectral type K2III in the constellation Lepus, 249.6 light-years from the Sun.
| Constellation | Lepus |
|---|---|
| Distance | 249.6 light-years (76.5 pc) |
| Apparent magnitude | magnitude 5.71 |
| Absolute magnitude | magnitude 1.29 |
| Spectral type | K2III |
| Surface temperature | 4,380 K |
| Luminosity | 52.3 L☉ |
| Radius | 12.6 R☉ |
| Mass | 2.81 M☉ (estimated) |
| Right ascension (J2000) | 5h 05m 16.2s |
| Declination (J2000) | −26° 09′ 09″ |
| Space velocity (relative to the Sun) | 22.9 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.71). Visible from the whole Southern Hemisphere and north to latitude 64° N. South of latitude 64° S it never sets. It stands highest at midnight in December, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1776. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 4.4 million years.
The Sun seen from there
From a planet around HIP 23668, the Sun would look like a star of magnitude 9.25, in the direction where our sky has the constellation Hercules. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 23243 10.3 light-years
- HIP 22683 12.8 light-years
- HIP 22482 16.0 light-years
- HIP 23347 17.6 light-years
- HIP 24250 18.8 light-years
- HIP 23430 19.1 light-years
- HIP 22159 20.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.