Star · K2
GJ 3820
GJ 3820 is a main-sequence star of spectral type K2 in the constellation Virgo, 35.3 light-years from the Sun.
| Constellation | Virgo |
|---|---|
| Distance | 35.3 light-years (10.8 pc) |
| Apparent magnitude | magnitude 13.00 |
| Absolute magnitude | magnitude 12.83 |
| Spectral type | K2 |
| Surface temperature | 4,920 K |
| Luminosity | 9.00 × 10⁻⁴ L☉ |
| Radius | 0.0412 R☉ |
| Mass | 0.0898 M☉ (estimated) |
| Right ascension (J2000) | 13h 59m 10.4s |
| Declination (J2000) | −19° 50′ 09″ |
| Space velocity (relative to the Sun) | 30.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 13.00. Visible from the whole Southern Hemisphere and north to latitude 70° N. South of latitude 70° S it never sets. It stands highest at midnight in April, the best time to observe it.
Through a telescope from Earth
Light's journey
The light you see tonight set out around the year 1991. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 626 thousand years.
The Sun seen from there
From a planet around GJ 3820, the Sun would look like a star of magnitude 5.00, in the direction where our sky has the constellation Aries. It would be visible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3804 2.61 light-years
- Gl 553.1 6.62 light-years
- CWISEP J144606.62-231717.8 7.03 light-years
- WISEPA J132233.66-234017.1 8.99 light-years
- 61 Vir 9.15 light-years
- GJ 536 10.4 light-years
- Gl 529 10.8 light-years
- GJ 3866 11.3 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.