Star · ?
GJ 3889
GJ 3889 is a white dwarf of spectral type ? in the constellation Libra, 88.0 light-years from the Sun.
| Constellation | Libra |
|---|---|
| Distance | 88.0 light-years (27.0 pc) |
| Apparent magnitude | magnitude 15.90 |
| Absolute magnitude | magnitude 13.75 |
| Spectral type | ? |
| Surface temperature | 8,000 K |
| Luminosity | 2.87 × 10⁻⁴ L☉ |
| Radius | 0.012 R☉ |
| Mass | 0.6 M☉ (estimated) |
| Right ascension (J2000) | 15h 05m 48.9s |
| Declination (J2000) | −7° 14′ 45″ |
| Space velocity (relative to the Sun) | 26.3 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 15.90. Visible from the whole Southern Hemisphere and north to latitude 83° N. 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 1938. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.6 million years.
The Sun seen from there
From a planet around GJ 3889, the Sun would look like a star of magnitude 6.98, in the direction where our sky has the constellation Cetus. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- 16 Lib 5.87 light-years
- GJ 1190 7.24 light-years
- ε Lib 10.7 light-years
- HIP 76233 11.9 light-years
- PSO J227.1576-07.9608 13.3 light-years
- WISEA J143422.31-083934.2 13.3 light-years
- HIP 71469 13.4 light-years
- 37 Lib 13.9 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.