Star · G8V
GJ 3970
GJ 3970 is a main-sequence star of spectral type G8V in the constellation Scorpius, 156.0 light-years from the Sun.
| Other names | HIP 81819 |
|---|---|
| Constellation | Scorpius |
| Distance | 156.0 light-years (47.8 pc) |
| Apparent magnitude | magnitude 7.16 |
| Absolute magnitude | magnitude 3.76 |
| Spectral type | G8V |
| Surface temperature | 5,340 K |
| Luminosity | 3.24 L☉ |
| Radius | 2.1 R☉ |
| Mass | 1.34 M☉ (estimated) |
| Right ascension (J2000) | 16h 42m 46.7s |
| Declination (J2000) | −37° 20′ 33″ |
| Space velocity (relative to the Sun) | 23.2 km/s |
In the sky
Too faint for the naked eye (magnitude 7.16); binoculars will find it. Visible from the whole Southern Hemisphere and north to latitude 53° N. South of latitude 53° S it never sets. It stands highest at midnight in May, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1870. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 2.8 million years.
The Sun seen from there
From a planet around GJ 3970, the Sun would look like a star of magnitude 8.23, in the direction where our sky has the constellation Perseus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- HIP 81269 10.7 light-years
- HIP 81896 14.6 light-years
- HIP 80013 16.0 light-years
- HIP 79482 18.7 light-years
- HIP 82738 19.6 light-years
- HIP 83415 19.8 light-years
- Rapeto 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.