Star · K0III
HIP 20825
HIP 20825 is a giant star of spectral type K0III in the constellation Reticulum, 324.1 light-years from the Sun.
| Constellation | Reticulum |
|---|---|
| Distance | 324.1 light-years (99.4 pc) |
| Apparent magnitude | magnitude 5.74 |
| Absolute magnitude | magnitude 0.75 |
| Spectral type | K0III |
| Surface temperature | 4,730 K |
| Luminosity | 67.4 L☉ |
| Radius | 12.2 R☉ |
| Mass | 3.02 M☉ (estimated) |
| Right ascension (J2000) | 4h 27m 46.0s |
| Declination (J2000) | −62° 31′ 16″ |
| Space velocity (relative to the Sun) | 6.3 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 5.74). Visible from the whole Southern Hemisphere and north to latitude 27° N. South of latitude 27° S it never sets. It stands highest at midnight in November, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1702. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 5.8 million years.
The Sun seen from there
From a planet around HIP 20825, the Sun would look like a star of magnitude 9.82, in the direction where our sky has the constellation Draco. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 20525 5.16 light-years
- HIP 21789 13.3 light-years
- ι Ret 19.7 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.