Star · M3
GJ 2070
GJ 2070 is a main-sequence star of spectral type M3 in the constellation Hydra, 43.8 light-years from the Sun.
| Constellation | Hydra |
|---|---|
| Distance | 43.8 light-years (13.4 pc) |
| Apparent magnitude | magnitude 12.73 |
| Absolute magnitude | magnitude 12.09 |
| Spectral type | M3 |
| Surface temperature | 3,620 K |
| Luminosity | 0.00589 L☉ |
| Radius | 0.195 R☉ |
| Mass | 0.203 M☉ (estimated) |
| Right ascension (J2000) | 8h 34m 26.4s |
| Declination (J2000) | −1° 08′ 38″ |
| Space velocity (relative to the Sun) | 30.6 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 12.73. Visible from the whole Southern Hemisphere and north to latitude 89° N. It stands highest at midnight in January, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1982. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 778 thousand years.
The Sun seen from there
From a planet around GJ 2070, the Sun would look like a star of magnitude 5.47, in the direction where our sky has the constellation Aquila. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- WISEPA J081958.05-033529.0 3.87 light-years
- WISEA J080622.22-082046.5 8.35 light-years
- GJ 3467 9.39 light-years
- HD 69830 9.41 light-years
- Gl 334 9.47 light-years
- ULAS J090116.23-030635.0 10.2 light-years
- SSSPM J0829-1309 10.3 light-years
- GJ 3463 11.0 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.