Star · G6 V
82 G. Eri
82 G. Eri is a main-sequence star of spectral type G6 V in the constellation Eridanus, 19.7 light-years from the Sun. It is orbited by 4 confirmed exoplanet(s).
| Other names | HD 20794 · Gl 139 · HIP 15510 |
|---|---|
| Constellation | Eridanus |
| Distance | 19.7 light-years (6.04 pc) |
| Apparent magnitude | magnitude 4.26 |
| Absolute magnitude | magnitude 5.35 |
| Spectral type | G6 V |
| Surface temperature | 5,370 K |
| Luminosity | 0.687 L☉ |
| Radius | 0.93 R☉ |
| Mass | 0.79 M☉ |
| Age | 5.8 billion years |
| Metallicity [Fe/H] | -0.42 |
| Right ascension (J2000) | 3h 19m 55.8s |
| Declination (J2000) | −43° 04′ 11″ |
| Space velocity (relative to the Sun) | 125.4 km/s |
In the sky
Visible to the naked eye under a dark sky (apparent magnitude 4.26). Visible from the whole Southern Hemisphere and north to latitude 47° N. South of latitude 47° 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 2006. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 350 thousand years.
The Sun seen from there
From a planet around 82 G. Eri, the Sun would look like a star of magnitude 3.74, in the direction where our sky has the constellation Boötes. It would be visible to the naked eye.
Planets
- HD 20794 b 18.3-day orbit · 1.45 R⊕
- HD 20794 d 89.7-day orbit · 2.04 R⊕
- HD 20794 e 147-day orbit · 2.03 R⊕
- HD 20794 f 648-day orbit · 2.28 R⊕
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- DENIS-P J025503.3-470049 4.24 light-years
- WISE J035000.32-565830.2 5.03 light-years
- GJ 1068 6.09 light-years
- GJ 1061 7.77 light-years
- Kapteyn's Star 8.83 light-years
- LTT 1445 A 10.1 light-years
- 2MASS J03480772-6022270 10.3 light-years
- p Eridani 10.8 light-years
Stellar parameters from the NASA Exoplanet Archive; position and brightness from the HYG / AT-HYG catalogue.