Star · ?
GJ 3888
GJ 3888 is a main-sequence star of spectral type ? in the constellation Libra, 80.2 light-years from the Sun.
| Constellation | Libra |
|---|---|
| Distance | 80.2 light-years (24.6 pc) |
| Apparent magnitude | magnitude 14.70 |
| Absolute magnitude | magnitude 12.75 |
| Spectral type | ? |
| Surface temperature | 3,650 K |
| Luminosity | 0.00308 L☉ |
| Radius | 0.139 R☉ |
| Mass | 0.153 M☉ (estimated) |
| Right ascension (J2000) | 15h 04m 57.7s |
| Declination (J2000) | −21° 07′ 06″ |
| Space velocity (relative to the Sun) | 80.0 km/s |
In the sky
A telescope is needed to see it: its apparent magnitude is 14.70. Visible from the whole Southern Hemisphere and north to latitude 69° N. South of latitude 69° 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 1946. At the speed of Voyager 1, the fastest craft leaving the Solar System (16.9 km per second), the trip would take 1.4 million years.
The Sun seen from there
From a planet around GJ 3888, the Sun would look like a star of magnitude 6.78, in the direction where our sky has the constellation Aries. It would be invisible to the naked eye.
Neighbours
Its nearest neighbours in the catalogue (within 20 light-years):
- GJ 3865B 6.97 light-years
- HD 134987 8.44 light-years
- CWISEP J151521.22-215736.9 8.68 light-years
- α¹ Lib 8.74 light-years
- Zubenelgenubi 9.38 light-years
- HIP 75798 10.2 light-years
- GJ 9518 10.8 light-years
- HIP 71743 10.8 light-years
Position, brightness and colour from the HYG / AT-HYG catalogue; temperature, luminosity, radius and mass are approximate values computed from these observations.