Star · G8III
Theemin
Theemin is a giant star of spectral type G8III in the constellation Eridanus, 211.1 light-years from the Sun.
| Other names | υ² Eri · HIP 21393 |
|---|---|
| Constellation | Eridanus |
| Distance | 211.1 light-years (64.7 pc) |
| Apparent magnitude | magnitude 3.81 |
| Absolute magnitude | magnitude −0.25 |
| Spectral type | G8III |
| Surface temperature | 4,850 K |
| Luminosity | 159 L☉ |
| Radius | 17.8 R☉ |
| Mass | 3.86 M☉ (estimated) |
| Right ascension (J2000) | 4h 35m 33.0s |
| Declination (J2000) | −30° 33′ 44″ |
| Space velocity (relative to the Sun) | 16.1 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 3.81). Visible from the whole Southern Hemisphere and north to latitude 59° N. South of latitude 59° 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 1815. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 3.7 million years.
The Sun seen from there
From a planet around Theemin, the Sun would look like a star of magnitude 8.89, 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 21548 9.21 light-years
- HIP 20594 17.0 light-years
- HIP 20509 18.3 light-years
- HIP 19684 19.5 light-years
- HIP 22824 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.